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Finding the Fourth Proportional to 118,833.01, 178,129.58 and 74,490.91

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Solution

The fourth proportional to 118,833.01, 178,129.58 and 74,490.91 is: 111,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,833.01 : 178,129.58 = 74,490.91 : x
  2. Step 2: Convert to fraction form
    118,833.01/178,129.58 = 74,490.91/x
  3. Step 3: Cross multiply
    118,833.01x = 178,129.58 × 74,490.91
  4. Step 4: Simplify right side
    118,833.01x = 13,269,033,694.34
  5. Step 5: Solve for x
    x = 13,269,033,694.34/118,833.01
  6. Step 6: Final answer
    x = 111,661.18

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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.