Home / 98,940.21-147,867.17-72,342.19

Finding the Fourth Proportional to 98,940.21, 147,867.17 and 72,342.19

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Solution

The fourth proportional to 98,940.21, 147,867.17 and 72,342.19 is: 108,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,940.21 : 147,867.17 = 72,342.19 : x
  2. Step 2: Convert to fraction form
    98,940.21/147,867.17 = 72,342.19/x
  3. Step 3: Cross multiply
    98,940.21x = 147,867.17 × 72,342.19
  4. Step 4: Simplify right side
    98,940.21x = 10,697,034,906.90
  5. Step 5: Solve for x
    x = 10,697,034,906.90/98,940.21
  6. Step 6: Final answer
    x = 108,116.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.