Home / 129,937.96-179,317.32-76,261.69

Finding the Fourth Proportional to 129,937.96, 179,317.32 and 76,261.69

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Solution

The fourth proportional to 129,937.96, 179,317.32 and 76,261.69 is: 105,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,937.96 : 179,317.32 = 76,261.69 : x
  2. Step 2: Convert to fraction form
    129,937.96/179,317.32 = 76,261.69/x
  3. Step 3: Cross multiply
    129,937.96x = 179,317.32 × 76,261.69
  4. Step 4: Simplify right side
    129,937.96x = 13,675,041,013.46
  5. Step 5: Solve for x
    x = 13,675,041,013.46/129,937.96
  6. Step 6: Final answer
    x = 105,242.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.