Home / 132,613.72-183,010.93-81,655.86

Finding the Fourth Proportional to 132,613.72, 183,010.93 and 81,655.86

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Solution

The fourth proportional to 132,613.72, 183,010.93 and 81,655.86 is: 112,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,613.72 : 183,010.93 = 81,655.86 : x
  2. Step 2: Convert to fraction form
    132,613.72/183,010.93 = 81,655.86/x
  3. Step 3: Cross multiply
    132,613.72x = 183,010.93 × 81,655.86
  4. Step 4: Simplify right side
    132,613.72x = 14,943,915,360.70
  5. Step 5: Solve for x
    x = 14,943,915,360.70/132,613.72
  6. Step 6: Final answer
    x = 112,687.55

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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.