Home / 129,938.88-179,315.66-70,322.88

Finding the Fourth Proportional to 129,938.88, 179,315.66 and 70,322.88

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Solution

The fourth proportional to 129,938.88, 179,315.66 and 70,322.88 is: 97,045.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,938.88 : 179,315.66 = 70,322.88 : x
  2. Step 2: Convert to fraction form
    129,938.88/179,315.66 = 70,322.88/x
  3. Step 3: Cross multiply
    129,938.88x = 179,315.66 × 70,322.88
  4. Step 4: Simplify right side
    129,938.88x = 12,609,993,640.30
  5. Step 5: Solve for x
    x = 12,609,993,640.30/129,938.88
  6. Step 6: Final answer
    x = 97,045.58

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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.