Home / 100,899.72-139,096.17-70,591.14

Finding the Fourth Proportional to 100,899.72, 139,096.17 and 70,591.14

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Solution

The fourth proportional to 100,899.72, 139,096.17 and 70,591.14 is: 97,314.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,899.72 : 139,096.17 = 70,591.14 : x
  2. Step 2: Convert to fraction form
    100,899.72/139,096.17 = 70,591.14/x
  3. Step 3: Cross multiply
    100,899.72x = 139,096.17 × 70,591.14
  4. Step 4: Simplify right side
    100,899.72x = 9,818,957,209.93
  5. Step 5: Solve for x
    x = 9,818,957,209.93/100,899.72
  6. Step 6: Final answer
    x = 97,314.02

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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.