Home / 145,017.72-217,501.92-39,812.04

Finding the Fourth Proportional to 145,017.72, 217,501.92 and 39,812.04

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Solution

The fourth proportional to 145,017.72, 217,501.92 and 39,812.04 is: 59,711.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,017.72 : 217,501.92 = 39,812.04 : x
  2. Step 2: Convert to fraction form
    145,017.72/217,501.92 = 39,812.04/x
  3. Step 3: Cross multiply
    145,017.72x = 217,501.92 × 39,812.04
  4. Step 4: Simplify right side
    145,017.72x = 8,659,195,139.12
  5. Step 5: Solve for x
    x = 8,659,195,139.12/145,017.72
  6. Step 6: Final answer
    x = 59,711.29

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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.