Home / 103,663.27-143,099.45-69,691.46

Finding the Fourth Proportional to 103,663.27, 143,099.45 and 69,691.46

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Solution

The fourth proportional to 103,663.27, 143,099.45 and 69,691.46 is: 96,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.27 : 143,099.45 = 69,691.46 : x
  2. Step 2: Convert to fraction form
    103,663.27/143,099.45 = 69,691.46/x
  3. Step 3: Cross multiply
    103,663.27x = 143,099.45 × 69,691.46
  4. Step 4: Simplify right side
    103,663.27x = 9,972,810,127.67
  5. Step 5: Solve for x
    x = 9,972,810,127.67/103,663.27
  6. Step 6: Final answer
    x = 96,203.90

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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.