Home / 129,762.32-194,150.40-79,175.08

Finding the Fourth Proportional to 129,762.32, 194,150.40 and 79,175.08

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Solution

The fourth proportional to 129,762.32, 194,150.40 and 79,175.08 is: 118,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,762.32 : 194,150.40 = 79,175.08 : x
  2. Step 2: Convert to fraction form
    129,762.32/194,150.40 = 79,175.08/x
  3. Step 3: Cross multiply
    129,762.32x = 194,150.40 × 79,175.08
  4. Step 4: Simplify right side
    129,762.32x = 15,371,873,452.03
  5. Step 5: Solve for x
    x = 15,371,873,452.03/129,762.32
  6. Step 6: Final answer
    x = 118,461.76

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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.