Home / 99,122.20-148,737.80-42,962.81

Finding the Fourth Proportional to 99,122.20, 148,737.80 and 42,962.81

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Solution

The fourth proportional to 99,122.20, 148,737.80 and 42,962.81 is: 64,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,122.20 : 148,737.80 = 42,962.81 : x
  2. Step 2: Convert to fraction form
    99,122.20/148,737.80 = 42,962.81/x
  3. Step 3: Cross multiply
    99,122.20x = 148,737.80 × 42,962.81
  4. Step 4: Simplify right side
    99,122.20x = 6,390,193,204.94
  5. Step 5: Solve for x
    x = 6,390,193,204.94/99,122.20
  6. Step 6: Final answer
    x = 64,467.83

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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.