Home / 145,126.08-217,663.56-39,920.04

Finding the Fourth Proportional to 145,126.08, 217,663.56 and 39,920.04

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Solution

The fourth proportional to 145,126.08, 217,663.56 and 39,920.04 is: 59,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,126.08 : 217,663.56 = 39,920.04 : x
  2. Step 2: Convert to fraction form
    145,126.08/217,663.56 = 39,920.04/x
  3. Step 3: Cross multiply
    145,126.08x = 217,663.56 × 39,920.04
  4. Step 4: Simplify right side
    145,126.08x = 8,689,138,021.74
  5. Step 5: Solve for x
    x = 8,689,138,021.74/145,126.08
  6. Step 6: Final answer
    x = 59,873.03

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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.