Home / 99,342.30-149,039.85-43,158.30

Finding the Fourth Proportional to 99,342.30, 149,039.85 and 43,158.30

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Solution

The fourth proportional to 99,342.30, 149,039.85 and 43,158.30 is: 64,748.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,342.30 : 149,039.85 = 43,158.30 : x
  2. Step 2: Convert to fraction form
    99,342.30/149,039.85 = 43,158.30/x
  3. Step 3: Cross multiply
    99,342.30x = 149,039.85 × 43,158.30
  4. Step 4: Simplify right side
    99,342.30x = 6,432,306,558.26
  5. Step 5: Solve for x
    x = 6,432,306,558.26/99,342.30
  6. Step 6: Final answer
    x = 64,748.92

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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.