Home / 132,530.43-182,878.34-78,805.07

Finding the Fourth Proportional to 132,530.43, 182,878.34 and 78,805.07

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Solution

The fourth proportional to 132,530.43, 182,878.34 and 78,805.07 is: 108,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,530.43 : 182,878.34 = 78,805.07 : x
  2. Step 2: Convert to fraction form
    132,530.43/182,878.34 = 78,805.07/x
  3. Step 3: Cross multiply
    132,530.43x = 182,878.34 × 78,805.07
  4. Step 4: Simplify right side
    132,530.43x = 14,411,740,385.18
  5. Step 5: Solve for x
    x = 14,411,740,385.18/132,530.43
  6. Step 6: Final answer
    x = 108,742.88

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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.