Home / 129,767.42-179,079.18-76,041.74

Finding the Fourth Proportional to 129,767.42, 179,079.18 and 76,041.74

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Solution

The fourth proportional to 129,767.42, 179,079.18 and 76,041.74 is: 104,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,767.42 : 179,079.18 = 76,041.74 : x
  2. Step 2: Convert to fraction form
    129,767.42/179,079.18 = 76,041.74/x
  3. Step 3: Cross multiply
    129,767.42x = 179,079.18 × 76,041.74
  4. Step 4: Simplify right side
    129,767.42x = 13,617,492,444.97
  5. Step 5: Solve for x
    x = 13,617,492,444.97/129,767.42
  6. Step 6: Final answer
    x = 104,937.68

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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.