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Finding the Fourth Proportional to 98,080.34, 135,316.03 and 64,108.41

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Solution

The fourth proportional to 98,080.34, 135,316.03 and 64,108.41 is: 88,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,080.34 : 135,316.03 = 64,108.41 : x
  2. Step 2: Convert to fraction form
    98,080.34/135,316.03 = 64,108.41/x
  3. Step 3: Cross multiply
    98,080.34x = 135,316.03 × 64,108.41
  4. Step 4: Simplify right side
    98,080.34x = 8,674,895,834.61
  5. Step 5: Solve for x
    x = 8,674,895,834.61/98,080.34
  6. Step 6: Final answer
    x = 88,446.83

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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.