Home / 98,132.31-135,286.53-66,250.71

Finding the Fourth Proportional to 98,132.31, 135,286.53 and 66,250.71

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Solution

The fourth proportional to 98,132.31, 135,286.53 and 66,250.71 is: 91,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,132.31 : 135,286.53 = 66,250.71 : x
  2. Step 2: Convert to fraction form
    98,132.31/135,286.53 = 66,250.71/x
  3. Step 3: Cross multiply
    98,132.31x = 135,286.53 × 66,250.71
  4. Step 4: Simplify right side
    98,132.31x = 8,962,828,665.94
  5. Step 5: Solve for x
    x = 8,962,828,665.94/98,132.31
  6. Step 6: Final answer
    x = 91,334.12

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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.