Home / 82,840.40-124,260.60-76,425.20

Finding the Fourth Proportional to 82,840.40, 124,260.60 and 76,425.20

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Solution

The fourth proportional to 82,840.40, 124,260.60 and 76,425.20 is: 114,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,840.40 : 124,260.60 = 76,425.20 : x
  2. Step 2: Convert to fraction form
    82,840.40/124,260.60 = 76,425.20/x
  3. Step 3: Cross multiply
    82,840.40x = 124,260.60 × 76,425.20
  4. Step 4: Simplify right side
    82,840.40x = 9,496,641,207.12
  5. Step 5: Solve for x
    x = 9,496,641,207.12/82,840.40
  6. Step 6: Final answer
    x = 114,637.80

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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.