Home / 98,738.11-136,116.87-70,394.59

Finding the Fourth Proportional to 98,738.11, 136,116.87 and 70,394.59

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Solution

The fourth proportional to 98,738.11, 136,116.87 and 70,394.59 is: 97,043.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,738.11 : 136,116.87 = 70,394.59 : x
  2. Step 2: Convert to fraction form
    98,738.11/136,116.87 = 70,394.59/x
  3. Step 3: Cross multiply
    98,738.11x = 136,116.87 × 70,394.59
  4. Step 4: Simplify right side
    98,738.11x = 9,581,891,255.73
  5. Step 5: Solve for x
    x = 9,581,891,255.73/98,738.11
  6. Step 6: Final answer
    x = 97,043.49

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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.