Home / 129,822.78-179,155.38-70,206.78

Finding the Fourth Proportional to 129,822.78, 179,155.38 and 70,206.78

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Solution

The fourth proportional to 129,822.78, 179,155.38 and 70,206.78 is: 96,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,822.78 : 179,155.38 = 70,206.78 : x
  2. Step 2: Convert to fraction form
    129,822.78/179,155.38 = 70,206.78/x
  3. Step 3: Cross multiply
    129,822.78x = 179,155.38 × 70,206.78
  4. Step 4: Simplify right side
    129,822.78x = 12,577,922,349.48
  5. Step 5: Solve for x
    x = 12,577,922,349.48/129,822.78
  6. Step 6: Final answer
    x = 96,885.33

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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.