Home / 129,742.96-179,045.56-70,126.96

Finding the Fourth Proportional to 129,742.96, 179,045.56 and 70,126.96

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Solution

The fourth proportional to 129,742.96, 179,045.56 and 70,126.96 is: 96,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,742.96 : 179,045.56 = 70,126.96 : x
  2. Step 2: Convert to fraction form
    129,742.96/179,045.56 = 70,126.96/x
  3. Step 3: Cross multiply
    129,742.96x = 179,045.56 × 70,126.96
  4. Step 4: Simplify right side
    129,742.96x = 12,555,920,824.30
  5. Step 5: Solve for x
    x = 12,555,920,824.30/129,742.96
  6. Step 6: Final answer
    x = 96,775.35

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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.