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Finding the Fourth Proportional to 97,458.60, 146,187.90 and 74,130.60

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Solution

The fourth proportional to 97,458.60, 146,187.90 and 74,130.60 is: 111,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,458.60 : 146,187.90 = 74,130.60 : x
  2. Step 2: Convert to fraction form
    97,458.60/146,187.90 = 74,130.60/x
  3. Step 3: Cross multiply
    97,458.60x = 146,187.90 × 74,130.60
  4. Step 4: Simplify right side
    97,458.60x = 10,836,996,739.74
  5. Step 5: Solve for x
    x = 10,836,996,739.74/97,458.60
  6. Step 6: Final answer
    x = 111,195.90

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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.