Home / 101,431.15-152,160.56-42,252.98

Finding the Fourth Proportional to 101,431.15, 152,160.56 and 42,252.98

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Solution

The fourth proportional to 101,431.15, 152,160.56 and 42,252.98 is: 63,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,431.15 : 152,160.56 = 42,252.98 : x
  2. Step 2: Convert to fraction form
    101,431.15/152,160.56 = 42,252.98/x
  3. Step 3: Cross multiply
    101,431.15x = 152,160.56 × 42,252.98
  4. Step 4: Simplify right side
    101,431.15x = 6,429,237,042.61
  5. Step 5: Solve for x
    x = 6,429,237,042.61/101,431.15
  6. Step 6: Final answer
    x = 63,385.23

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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.