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Finding the Fourth Proportional to 113,503.20, 169,957.20 and 80,041.92

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Solution

The fourth proportional to 113,503.20, 169,957.20 and 80,041.92 is: 119,853.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,503.20 : 169,957.20 = 80,041.92 : x
  2. Step 2: Convert to fraction form
    113,503.20/169,957.20 = 80,041.92/x
  3. Step 3: Cross multiply
    113,503.20x = 169,957.20 × 80,041.92
  4. Step 4: Simplify right side
    113,503.20x = 13,603,700,605.82
  5. Step 5: Solve for x
    x = 13,603,700,605.82/113,503.20
  6. Step 6: Final answer
    x = 119,853.01

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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.