Home / 142,640.41-213,909.96-52,663.87

Finding the Fourth Proportional to 142,640.41, 213,909.96 and 52,663.87

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Solution

The fourth proportional to 142,640.41, 213,909.96 and 52,663.87 is: 78,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,640.41 : 213,909.96 = 52,663.87 : x
  2. Step 2: Convert to fraction form
    142,640.41/213,909.96 = 52,663.87/x
  3. Step 3: Cross multiply
    142,640.41x = 213,909.96 × 52,663.87
  4. Step 4: Simplify right side
    142,640.41x = 11,265,326,456.76
  5. Step 5: Solve for x
    x = 11,265,326,456.76/142,640.41
  6. Step 6: Final answer
    x = 78,977.10

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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.