Home / 98,701.01-136,144.68-64,711.69

Finding the Fourth Proportional to 98,701.01, 136,144.68 and 64,711.69

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Solution

The fourth proportional to 98,701.01, 136,144.68 and 64,711.69 is: 89,261.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,701.01 : 136,144.68 = 64,711.69 : x
  2. Step 2: Convert to fraction form
    98,701.01/136,144.68 = 64,711.69/x
  3. Step 3: Cross multiply
    98,701.01x = 136,144.68 × 64,711.69
  4. Step 4: Simplify right side
    98,701.01x = 8,810,152,874.10
  5. Step 5: Solve for x
    x = 8,810,152,874.10/98,701.01
  6. Step 6: Final answer
    x = 89,261.02

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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.