Home / 129,107.12-193,670.34-35,612

Finding the Fourth Proportional to 129,107.12, 193,670.34 and 35,612

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Solution

The fourth proportional to 129,107.12, 193,670.34 and 35,612 is: 53,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,107.12 : 193,670.34 = 35,612 : x
  2. Step 2: Convert to fraction form
    129,107.12/193,670.34 = 35,612/x
  3. Step 3: Cross multiply
    129,107.12x = 193,670.34 × 35,612
  4. Step 4: Simplify right side
    129,107.12x = 6,896,988,148.08
  5. Step 5: Solve for x
    x = 6,896,988,148.08/129,107.12
  6. Step 6: Final answer
    x = 53,420.66

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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.