Home / 125,140.38-172,696.50-71,424.29

Finding the Fourth Proportional to 125,140.38, 172,696.50 and 71,424.29

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Solution

The fourth proportional to 125,140.38, 172,696.50 and 71,424.29 is: 98,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,140.38 : 172,696.50 = 71,424.29 : x
  2. Step 2: Convert to fraction form
    125,140.38/172,696.50 = 71,424.29/x
  3. Step 3: Cross multiply
    125,140.38x = 172,696.50 × 71,424.29
  4. Step 4: Simplify right side
    125,140.38x = 12,334,724,034.50
  5. Step 5: Solve for x
    x = 12,334,724,034.50/125,140.38
  6. Step 6: Final answer
    x = 98,567.10

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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.