Home / 99,390.20-149,085.30-32,840.60

Finding the Fourth Proportional to 99,390.20, 149,085.30 and 32,840.60

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Solution

The fourth proportional to 99,390.20, 149,085.30 and 32,840.60 is: 49,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,390.20 : 149,085.30 = 32,840.60 : x
  2. Step 2: Convert to fraction form
    99,390.20/149,085.30 = 32,840.60/x
  3. Step 3: Cross multiply
    99,390.20x = 149,085.30 × 32,840.60
  4. Step 4: Simplify right side
    99,390.20x = 4,896,050,703.18
  5. Step 5: Solve for x
    x = 4,896,050,703.18/99,390.20
  6. Step 6: Final answer
    x = 49,260.90

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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.