Home / 129,306.12-193,959.45-35,812.14

Finding the Fourth Proportional to 129,306.12, 193,959.45 and 35,812.14

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Solution

The fourth proportional to 129,306.12, 193,959.45 and 35,812.14 is: 53,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,306.12 : 193,959.45 = 35,812.14 : x
  2. Step 2: Convert to fraction form
    129,306.12/193,959.45 = 35,812.14/x
  3. Step 3: Cross multiply
    129,306.12x = 193,959.45 × 35,812.14
  4. Step 4: Simplify right side
    129,306.12x = 6,946,102,977.72
  5. Step 5: Solve for x
    x = 6,946,102,977.72/129,306.12
  6. Step 6: Final answer
    x = 53,718.28

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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.