Home / 99,739.89-149,535.90-60,287.76

Finding the Fourth Proportional to 99,739.89, 149,535.90 and 60,287.76

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Solution

The fourth proportional to 99,739.89, 149,535.90 and 60,287.76 is: 90,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,739.89 : 149,535.90 = 60,287.76 : x
  2. Step 2: Convert to fraction form
    99,739.89/149,535.90 = 60,287.76/x
  3. Step 3: Cross multiply
    99,739.89x = 149,535.90 × 60,287.76
  4. Step 4: Simplify right side
    99,739.89x = 9,015,184,450.58
  5. Step 5: Solve for x
    x = 9,015,184,450.58/99,739.89
  6. Step 6: Final answer
    x = 90,386.95

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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.