Home / 156,780.03-216,273.51-99,317.97

Finding the Fourth Proportional to 156,780.03, 216,273.51 and 99,317.97

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Solution

The fourth proportional to 156,780.03, 216,273.51 and 99,317.97 is: 137,006.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,780.03 : 216,273.51 = 99,317.97 : x
  2. Step 2: Convert to fraction form
    156,780.03/216,273.51 = 99,317.97/x
  3. Step 3: Cross multiply
    156,780.03x = 216,273.51 × 99,317.97
  4. Step 4: Simplify right side
    156,780.03x = 21,479,845,481.38
  5. Step 5: Solve for x
    x = 21,479,845,481.38/156,780.03
  6. Step 6: Final answer
    x = 137,006.26

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1.5x scale

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.