Home / 79,207.24-118,515.57-78,321.46

Finding the Fourth Proportional to 79,207.24, 118,515.57 and 78,321.46

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Solution

The fourth proportional to 79,207.24, 118,515.57 and 78,321.46 is: 117,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.24 : 118,515.57 = 78,321.46 : x
  2. Step 2: Convert to fraction form
    79,207.24/118,515.57 = 78,321.46/x
  3. Step 3: Cross multiply
    79,207.24x = 118,515.57 × 78,321.46
  4. Step 4: Simplify right side
    79,207.24x = 9,282,312,475.13
  5. Step 5: Solve for x
    x = 9,282,312,475.13/79,207.24
  6. Step 6: Final answer
    x = 117,190.20

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1.5x scale

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.