Home / 279,177.15-418,751.86-89,646.79

Finding the Fourth Proportional to 279,177.15, 418,751.86 and 89,646.79

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Solution

The fourth proportional to 279,177.15, 418,751.86 and 89,646.79 is: 134,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,177.15 : 418,751.86 = 89,646.79 : x
  2. Step 2: Convert to fraction form
    279,177.15/418,751.86 = 89,646.79/x
  3. Step 3: Cross multiply
    279,177.15x = 418,751.86 × 89,646.79
  4. Step 4: Simplify right side
    279,177.15x = 37,539,761,326.53
  5. Step 5: Solve for x
    x = 37,539,761,326.53/279,177.15
  6. Step 6: Final answer
    x = 134,465.74

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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.