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Finding the Fourth Proportional to 97,485.80, 146,228.70 and 63,660.20

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Solution

The fourth proportional to 97,485.80, 146,228.70 and 63,660.20 is: 95,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,485.80 : 146,228.70 = 63,660.20 : x
  2. Step 2: Convert to fraction form
    97,485.80/146,228.70 = 63,660.20/x
  3. Step 3: Cross multiply
    97,485.80x = 146,228.70 × 63,660.20
  4. Step 4: Simplify right side
    97,485.80x = 9,308,948,287.74
  5. Step 5: Solve for x
    x = 9,308,948,287.74/97,485.80
  6. Step 6: Final answer
    x = 95,490.30

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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.