Home / 114,115.20-171,030.24-78,773.28

Finding the Fourth Proportional to 114,115.20, 171,030.24 and 78,773.28

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Solution

The fourth proportional to 114,115.20, 171,030.24 and 78,773.28 is: 118,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,115.20 : 171,030.24 = 78,773.28 : x
  2. Step 2: Convert to fraction form
    114,115.20/171,030.24 = 78,773.28/x
  3. Step 3: Cross multiply
    114,115.20x = 171,030.24 × 78,773.28
  4. Step 4: Simplify right side
    114,115.20x = 13,472,612,983.99
  5. Step 5: Solve for x
    x = 13,472,612,983.99/114,115.20
  6. Step 6: Final answer
    x = 118,061.51

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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.