Home / 125,048.43-172,543.10-74,047.59

Finding the Fourth Proportional to 125,048.43, 172,543.10 and 74,047.59

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Solution

The fourth proportional to 125,048.43, 172,543.10 and 74,047.59 is: 102,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,048.43 : 172,543.10 = 74,047.59 : x
  2. Step 2: Convert to fraction form
    125,048.43/172,543.10 = 74,047.59/x
  3. Step 3: Cross multiply
    125,048.43x = 172,543.10 × 74,047.59
  4. Step 4: Simplify right side
    125,048.43x = 12,776,400,355.89
  5. Step 5: Solve for x
    x = 12,776,400,355.89/125,048.43
  6. Step 6: Final answer
    x = 102,171.62

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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.