Home / 149,034.87-205,562.37-91,598.78

Finding the Fourth Proportional to 149,034.87, 205,562.37 and 91,598.78

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Solution

The fourth proportional to 149,034.87, 205,562.37 and 91,598.78 is: 126,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,034.87 : 205,562.37 = 91,598.78 : x
  2. Step 2: Convert to fraction form
    149,034.87/205,562.37 = 91,598.78/x
  3. Step 3: Cross multiply
    149,034.87x = 205,562.37 × 91,598.78
  4. Step 4: Simplify right side
    149,034.87x = 18,829,262,305.91
  5. Step 5: Solve for x
    x = 18,829,262,305.91/149,034.87
  6. Step 6: Final answer
    x = 126,341.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.