Home / 145,177.81-217,766.24-38,572.43

Finding the Fourth Proportional to 145,177.81, 217,766.24 and 38,572.43

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Solution

The fourth proportional to 145,177.81, 217,766.24 and 38,572.43 is: 57,858.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,177.81 : 217,766.24 = 38,572.43 : x
  2. Step 2: Convert to fraction form
    145,177.81/217,766.24 = 38,572.43/x
  3. Step 3: Cross multiply
    145,177.81x = 217,766.24 × 38,572.43
  4. Step 4: Simplify right side
    145,177.81x = 8,399,771,911.72
  5. Step 5: Solve for x
    x = 8,399,771,911.72/145,177.81
  6. Step 6: Final answer
    x = 57,858.51

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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.