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Finding the Fourth Proportional to 159,487.86, 220,125.13 and 91,550.77

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Solution

The fourth proportional to 159,487.86, 220,125.13 and 91,550.77 is: 126,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,487.86 : 220,125.13 = 91,550.77 : x
  2. Step 2: Convert to fraction form
    159,487.86/220,125.13 = 91,550.77/x
  3. Step 3: Cross multiply
    159,487.86x = 220,125.13 × 91,550.77
  4. Step 4: Simplify right side
    159,487.86x = 20,152,624,368.66
  5. Step 5: Solve for x
    x = 20,152,624,368.66/159,487.86
  6. Step 6: Final answer
    x = 126,358.36

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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.