Home / 113,235.57-156,261.15-72,951.03

Finding the Fourth Proportional to 113,235.57, 156,261.15 and 72,951.03

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Solution

The fourth proportional to 113,235.57, 156,261.15 and 72,951.03 is: 100,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,235.57 : 156,261.15 = 72,951.03 : x
  2. Step 2: Convert to fraction form
    113,235.57/156,261.15 = 72,951.03/x
  3. Step 3: Cross multiply
    113,235.57x = 156,261.15 × 72,951.03
  4. Step 4: Simplify right side
    113,235.57x = 11,399,411,841.48
  5. Step 5: Solve for x
    x = 11,399,411,841.48/113,235.57
  6. Step 6: Final answer
    x = 100,669.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.