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Finding the Fourth Proportional to 102,532.20, 153,798.30 and 100,458.60

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Solution

The fourth proportional to 102,532.20, 153,798.30 and 100,458.60 is: 150,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,532.20 : 153,798.30 = 100,458.60 : x
  2. Step 2: Convert to fraction form
    102,532.20/153,798.30 = 100,458.60/x
  3. Step 3: Cross multiply
    102,532.20x = 153,798.30 × 100,458.60
  4. Step 4: Simplify right side
    102,532.20x = 15,450,361,900.38
  5. Step 5: Solve for x
    x = 15,450,361,900.38/102,532.20
  6. Step 6: Final answer
    x = 150,687.90

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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.