Home / 122,175.28-183,318-77,790.52

Finding the Fourth Proportional to 122,175.28, 183,318 and 77,790.52

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Solution

The fourth proportional to 122,175.28, 183,318 and 77,790.52 is: 116,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,175.28 : 183,318 = 77,790.52 : x
  2. Step 2: Convert to fraction form
    122,175.28/183,318 = 77,790.52/x
  3. Step 3: Cross multiply
    122,175.28x = 183,318 × 77,790.52
  4. Step 4: Simplify right side
    122,175.28x = 14,260,402,545.36
  5. Step 5: Solve for x
    x = 14,260,402,545.36/122,175.28
  6. Step 6: Final answer
    x = 116,720.85

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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.