Home / 129,829.38-179,165.08-70,213.38

Finding the Fourth Proportional to 129,829.38, 179,165.08 and 70,213.38

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Solution

The fourth proportional to 129,829.38, 179,165.08 and 70,213.38 is: 96,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,829.38 : 179,165.08 = 70,213.38 : x
  2. Step 2: Convert to fraction form
    129,829.38/179,165.08 = 70,213.38/x
  3. Step 3: Cross multiply
    129,829.38x = 179,165.08 × 70,213.38
  4. Step 4: Simplify right side
    129,829.38x = 12,579,785,844.77
  5. Step 5: Solve for x
    x = 12,579,785,844.77/129,829.38
  6. Step 6: Final answer
    x = 96,894.75

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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.