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Finding the Fourth Proportional to 172,152.60, 237,585.48 and 100,555.68

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Solution

The fourth proportional to 172,152.60, 237,585.48 and 100,555.68 is: 138,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,152.60 : 237,585.48 = 100,555.68 : x
  2. Step 2: Convert to fraction form
    172,152.60/237,585.48 = 100,555.68/x
  3. Step 3: Cross multiply
    172,152.60x = 237,585.48 × 100,555.68
  4. Step 4: Simplify right side
    172,152.60x = 23,890,569,499.53
  5. Step 5: Solve for x
    x = 23,890,569,499.53/172,152.60
  6. Step 6: Final answer
    x = 138,775.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.