Home / 116,800.30-161,197.02-71,508.76

Finding the Fourth Proportional to 116,800.30, 161,197.02 and 71,508.76

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Solution

The fourth proportional to 116,800.30, 161,197.02 and 71,508.76 is: 98,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,800.30 : 161,197.02 = 71,508.76 : x
  2. Step 2: Convert to fraction form
    116,800.30/161,197.02 = 71,508.76/x
  3. Step 3: Cross multiply
    116,800.30x = 161,197.02 × 71,508.76
  4. Step 4: Simplify right side
    116,800.30x = 11,526,999,015.90
  5. Step 5: Solve for x
    x = 11,526,999,015.90/116,800.30
  6. Step 6: Final answer
    x = 98,689.81

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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.