Home / 161,630.16-242,332.56-71,623.86

Finding the Fourth Proportional to 161,630.16, 242,332.56 and 71,623.86

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Solution

The fourth proportional to 161,630.16, 242,332.56 and 71,623.86 is: 107,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,630.16 : 242,332.56 = 71,623.86 : x
  2. Step 2: Convert to fraction form
    161,630.16/242,332.56 = 71,623.86/x
  3. Step 3: Cross multiply
    161,630.16x = 242,332.56 × 71,623.86
  4. Step 4: Simplify right side
    161,630.16x = 17,356,793,350.88
  5. Step 5: Solve for x
    x = 17,356,793,350.88/161,630.16
  6. Step 6: Final answer
    x = 107,385.86

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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.