Home / 153,498.10-211,833.92-85,515.04

Finding the Fourth Proportional to 153,498.10, 211,833.92 and 85,515.04

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Solution

The fourth proportional to 153,498.10, 211,833.92 and 85,515.04 is: 118,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,498.10 : 211,833.92 = 85,515.04 : x
  2. Step 2: Convert to fraction form
    153,498.10/211,833.92 = 85,515.04/x
  3. Step 3: Cross multiply
    153,498.10x = 211,833.92 × 85,515.04
  4. Step 4: Simplify right side
    153,498.10x = 18,114,984,655.41
  5. Step 5: Solve for x
    x = 18,114,984,655.41/153,498.10
  6. Step 6: Final answer
    x = 118,014.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.