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Finding the Fourth Proportional to 168,111.10, 252,166.65 and 155,280.70

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Solution

The fourth proportional to 168,111.10, 252,166.65 and 155,280.70 is: 232,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,111.10 : 252,166.65 = 155,280.70 : x
  2. Step 2: Convert to fraction form
    168,111.10/252,166.65 = 155,280.70/x
  3. Step 3: Cross multiply
    168,111.10x = 252,166.65 × 155,280.70
  4. Step 4: Simplify right side
    168,111.10x = 39,156,613,928.66
  5. Step 5: Solve for x
    x = 39,156,613,928.66/168,111.10
  6. Step 6: Final answer
    x = 232,921.05

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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.