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Finding the Fourth Proportional to 99,230.40, 148,845.60 and 98,539.20

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Solution

The fourth proportional to 99,230.40, 148,845.60 and 98,539.20 is: 147,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,230.40 : 148,845.60 = 98,539.20 : x
  2. Step 2: Convert to fraction form
    99,230.40/148,845.60 = 98,539.20/x
  3. Step 3: Cross multiply
    99,230.40x = 148,845.60 × 98,539.20
  4. Step 4: Simplify right side
    99,230.40x = 14,667,126,347.52
  5. Step 5: Solve for x
    x = 14,667,126,347.52/99,230.40
  6. Step 6: Final answer
    x = 147,808.80

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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.