Home / 115,102.31-158,841.48-66,713.57

Finding the Fourth Proportional to 115,102.31, 158,841.48 and 66,713.57

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Solution

The fourth proportional to 115,102.31, 158,841.48 and 66,713.57 is: 92,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,102.31 : 158,841.48 = 66,713.57 : x
  2. Step 2: Convert to fraction form
    115,102.31/158,841.48 = 66,713.57/x
  3. Step 3: Cross multiply
    115,102.31x = 158,841.48 × 66,713.57
  4. Step 4: Simplify right side
    115,102.31x = 10,596,881,861.32
  5. Step 5: Solve for x
    x = 10,596,881,861.32/115,102.31
  6. Step 6: Final answer
    x = 92,064.89

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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.