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Finding the Fourth Proportional to 97,034.60, 145,551.90 and 72,458.60

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Solution

The fourth proportional to 97,034.60, 145,551.90 and 72,458.60 is: 108,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,034.60 : 145,551.90 = 72,458.60 : x
  2. Step 2: Convert to fraction form
    97,034.60/145,551.90 = 72,458.60/x
  3. Step 3: Cross multiply
    97,034.60x = 145,551.90 × 72,458.60
  4. Step 4: Simplify right side
    97,034.60x = 10,546,486,901.34
  5. Step 5: Solve for x
    x = 10,546,486,901.34/97,034.60
  6. Step 6: Final answer
    x = 108,687.90

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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.