Home / 97,680.87-134,670.38-70,434.16

Finding the Fourth Proportional to 97,680.87, 134,670.38 and 70,434.16

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Solution

The fourth proportional to 97,680.87, 134,670.38 and 70,434.16 is: 97,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,680.87 : 134,670.38 = 70,434.16 : x
  2. Step 2: Convert to fraction form
    97,680.87/134,670.38 = 70,434.16/x
  3. Step 3: Cross multiply
    97,680.87x = 134,670.38 × 70,434.16
  4. Step 4: Simplify right side
    97,680.87x = 9,485,394,799.53
  5. Step 5: Solve for x
    x = 9,485,394,799.53/97,680.87
  6. Step 6: Final answer
    x = 97,105.96

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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.