Home / 99,115.96-148,610.76-42,159.28

Finding the Fourth Proportional to 99,115.96, 148,610.76 and 42,159.28

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Solution

The fourth proportional to 99,115.96, 148,610.76 and 42,159.28 is: 63,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,115.96 : 148,610.76 = 42,159.28 : x
  2. Step 2: Convert to fraction form
    99,115.96/148,610.76 = 42,159.28/x
  3. Step 3: Cross multiply
    99,115.96x = 148,610.76 × 42,159.28
  4. Step 4: Simplify right side
    99,115.96x = 6,265,322,641.85
  5. Step 5: Solve for x
    x = 6,265,322,641.85/99,115.96
  6. Step 6: Final answer
    x = 63,212.05

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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.