Home / 98,921.46-136,573.92-68,697.12

Finding the Fourth Proportional to 98,921.46, 136,573.92 and 68,697.12

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Solution

The fourth proportional to 98,921.46, 136,573.92 and 68,697.12 is: 94,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,921.46 : 136,573.92 = 68,697.12 : x
  2. Step 2: Convert to fraction form
    98,921.46/136,573.92 = 68,697.12/x
  3. Step 3: Cross multiply
    98,921.46x = 136,573.92 × 68,697.12
  4. Step 4: Simplify right side
    98,921.46x = 9,382,234,971.11
  5. Step 5: Solve for x
    x = 9,382,234,971.11/98,921.46
  6. Step 6: Final answer
    x = 94,845.29

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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.