Home / 99,004.45-148,151.91-85,723.25

Finding the Fourth Proportional to 99,004.45, 148,151.91 and 85,723.25

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Solution

The fourth proportional to 99,004.45, 148,151.91 and 85,723.25 is: 128,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,004.45 : 148,151.91 = 85,723.25 : x
  2. Step 2: Convert to fraction form
    99,004.45/148,151.91 = 85,723.25/x
  3. Step 3: Cross multiply
    99,004.45x = 148,151.91 × 85,723.25
  4. Step 4: Simplify right side
    99,004.45x = 12,700,063,218.91
  5. Step 5: Solve for x
    x = 12,700,063,218.91/99,004.45
  6. Step 6: Final answer
    x = 128,277.70

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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.