Home / 124,918-172,382.50-71,220.31

Finding the Fourth Proportional to 124,918, 172,382.50 and 71,220.31

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Solution

The fourth proportional to 124,918, 172,382.50 and 71,220.31 is: 98,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,918 : 172,382.50 = 71,220.31 : x
  2. Step 2: Convert to fraction form
    124,918/172,382.50 = 71,220.31/x
  3. Step 3: Cross multiply
    124,918x = 172,382.50 × 71,220.31
  4. Step 4: Simplify right side
    124,918x = 12,277,135,088.58
  5. Step 5: Solve for x
    x = 12,277,135,088.58/124,918
  6. Step 6: Final answer
    x = 98,281.55

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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.