Home / 98,081.28-147,060.36-45,423.18

Finding the Fourth Proportional to 98,081.28, 147,060.36 and 45,423.18

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Solution

The fourth proportional to 98,081.28, 147,060.36 and 45,423.18 is: 68,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,081.28 : 147,060.36 = 45,423.18 : x
  2. Step 2: Convert to fraction form
    98,081.28/147,060.36 = 45,423.18/x
  3. Step 3: Cross multiply
    98,081.28x = 147,060.36 × 45,423.18
  4. Step 4: Simplify right side
    98,081.28x = 6,679,949,203.14
  5. Step 5: Solve for x
    x = 6,679,949,203.14/98,081.28
  6. Step 6: Final answer
    x = 68,106.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.