Home / 89,816.90-134,725.35-79,708.10

Finding the Fourth Proportional to 89,816.90, 134,725.35 and 79,708.10

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Solution

The fourth proportional to 89,816.90, 134,725.35 and 79,708.10 is: 119,562.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,816.90 : 134,725.35 = 79,708.10 : x
  2. Step 2: Convert to fraction form
    89,816.90/134,725.35 = 79,708.10/x
  3. Step 3: Cross multiply
    89,816.90x = 134,725.35 × 79,708.10
  4. Step 4: Simplify right side
    89,816.90x = 10,738,701,670.34
  5. Step 5: Solve for x
    x = 10,738,701,670.34/89,816.90
  6. Step 6: Final answer
    x = 119,562.15

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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.