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Finding the Fourth Proportional to 99,098.87, 148,671.01 and 42,948.40

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Solution

The fourth proportional to 99,098.87, 148,671.01 and 42,948.40 is: 64,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,098.87 : 148,671.01 = 42,948.40 : x
  2. Step 2: Convert to fraction form
    99,098.87/148,671.01 = 42,948.40/x
  3. Step 3: Cross multiply
    99,098.87x = 148,671.01 × 42,948.40
  4. Step 4: Simplify right side
    99,098.87x = 6,385,182,005.88
  5. Step 5: Solve for x
    x = 6,385,182,005.88/99,098.87
  6. Step 6: Final answer
    x = 64,432.44

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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.