Home / 99,099.05-148,671.29-42,948.59

Finding the Fourth Proportional to 99,099.05, 148,671.29 and 42,948.59

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Solution

The fourth proportional to 99,099.05, 148,671.29 and 42,948.59 is: 64,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,099.05 : 148,671.29 = 42,948.59 : x
  2. Step 2: Convert to fraction form
    99,099.05/148,671.29 = 42,948.59/x
  3. Step 3: Cross multiply
    99,099.05x = 148,671.29 × 42,948.59
  4. Step 4: Simplify right side
    99,099.05x = 6,385,222,278.98
  5. Step 5: Solve for x
    x = 6,385,222,278.98/99,099.05
  6. Step 6: Final answer
    x = 64,432.73

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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.