Home / 129,672.12-193,955.22-79,629.24

Finding the Fourth Proportional to 129,672.12, 193,955.22 and 79,629.24

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Solution

The fourth proportional to 129,672.12, 193,955.22 and 79,629.24 is: 119,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,672.12 : 193,955.22 = 79,629.24 : x
  2. Step 2: Convert to fraction form
    129,672.12/193,955.22 = 79,629.24/x
  3. Step 3: Cross multiply
    129,672.12x = 193,955.22 × 79,629.24
  4. Step 4: Simplify right side
    129,672.12x = 15,444,506,762.63
  5. Step 5: Solve for x
    x = 15,444,506,762.63/129,672.12
  6. Step 6: Final answer
    x = 119,104.30

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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.