Home / 132,278.58-182,544.75-78,565.86

Finding the Fourth Proportional to 132,278.58, 182,544.75 and 78,565.86

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Solution

The fourth proportional to 132,278.58, 182,544.75 and 78,565.86 is: 108,421.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,278.58 : 182,544.75 = 78,565.86 : x
  2. Step 2: Convert to fraction form
    132,278.58/182,544.75 = 78,565.86/x
  3. Step 3: Cross multiply
    132,278.58x = 182,544.75 × 78,565.86
  4. Step 4: Simplify right side
    132,278.58x = 14,341,785,272.24
  5. Step 5: Solve for x
    x = 14,341,785,272.24/132,278.58
  6. Step 6: Final answer
    x = 108,421.07

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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.