Home / 118,981.48-178,414.81-69,074.14

Finding the Fourth Proportional to 118,981.48, 178,414.81 and 69,074.14

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Solution

The fourth proportional to 118,981.48, 178,414.81 and 69,074.14 is: 103,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,981.48 : 178,414.81 = 69,074.14 : x
  2. Step 2: Convert to fraction form
    118,981.48/178,414.81 = 69,074.14/x
  3. Step 3: Cross multiply
    118,981.48x = 178,414.81 × 69,074.14
  4. Step 4: Simplify right side
    118,981.48x = 12,323,849,340.99
  5. Step 5: Solve for x
    x = 12,323,849,340.99/118,981.48
  6. Step 6: Final answer
    x = 103,577.88

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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.