Home / 132,987.32-183,546.24-79,275.76

Finding the Fourth Proportional to 132,987.32, 183,546.24 and 79,275.76

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Solution

The fourth proportional to 132,987.32, 183,546.24 and 79,275.76 is: 109,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,987.32 : 183,546.24 = 79,275.76 : x
  2. Step 2: Convert to fraction form
    132,987.32/183,546.24 = 79,275.76/x
  3. Step 3: Cross multiply
    132,987.32x = 183,546.24 × 79,275.76
  4. Step 4: Simplify right side
    132,987.32x = 14,550,767,671.14
  5. Step 5: Solve for x
    x = 14,550,767,671.14/132,987.32
  6. Step 6: Final answer
    x = 109,414.70

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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.