Home / 125,096.81-172,590.75-71,343.18

Finding the Fourth Proportional to 125,096.81, 172,590.75 and 71,343.18

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Solution

The fourth proportional to 125,096.81, 172,590.75 and 71,343.18 is: 98,429.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,096.81 : 172,590.75 = 71,343.18 : x
  2. Step 2: Convert to fraction form
    125,096.81/172,590.75 = 71,343.18/x
  3. Step 3: Cross multiply
    125,096.81x = 172,590.75 × 71,343.18
  4. Step 4: Simplify right side
    125,096.81x = 12,313,172,943.59
  5. Step 5: Solve for x
    x = 12,313,172,943.59/125,096.81
  6. Step 6: Final answer
    x = 98,429.16

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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.