Home / 119,155.43-178,774.10-74,730.17

Finding the Fourth Proportional to 119,155.43, 178,774.10 and 74,730.17

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Solution

The fourth proportional to 119,155.43, 178,774.10 and 74,730.17 is: 112,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,155.43 : 178,774.10 = 74,730.17 : x
  2. Step 2: Convert to fraction form
    119,155.43/178,774.10 = 74,730.17/x
  3. Step 3: Cross multiply
    119,155.43x = 178,774.10 × 74,730.17
  4. Step 4: Simplify right side
    119,155.43x = 13,359,818,884.60
  5. Step 5: Solve for x
    x = 13,359,818,884.60/119,155.43
  6. Step 6: Final answer
    x = 112,120.94

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1.5x scale

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.