Home / 102,239.67-141,010.80-66,441.18

Finding the Fourth Proportional to 102,239.67, 141,010.80 and 66,441.18

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Solution

The fourth proportional to 102,239.67, 141,010.80 and 66,441.18 is: 91,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,239.67 : 141,010.80 = 66,441.18 : x
  2. Step 2: Convert to fraction form
    102,239.67/141,010.80 = 66,441.18/x
  3. Step 3: Cross multiply
    102,239.67x = 141,010.80 × 66,441.18
  4. Step 4: Simplify right side
    102,239.67x = 9,368,923,944.74
  5. Step 5: Solve for x
    x = 9,368,923,944.74/102,239.67
  6. Step 6: Final answer
    x = 91,636.88

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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.