Home / 90,720,104.40-136,080,156.60-82,828,205.55

Finding the Fourth Proportional to 90,720,104.40, 136,080,156.60 and 82,828,205.55

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Solution

The fourth proportional to 90,720,104.40, 136,080,156.60 and 82,828,205.55 is: 124,242,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,720,104.40 : 136,080,156.60 = 82,828,205.55 : x
  2. Step 2: Convert to fraction form
    90,720,104.40/136,080,156.60 = 82,828,205.55/x
  3. Step 3: Cross multiply
    90,720,104.40x = 136,080,156.60 × 82,828,205.55
  4. Step 4: Simplify right side
    90,720,104.40x = 11,271,275,182,140,988
  5. Step 5: Solve for x
    x = 11,271,275,182,140,988/90,720,104.40
  6. Step 6: Final answer
    x = 124,242,308.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.