Home / 129,825.25-179,158.85-70,209.25

Finding the Fourth Proportional to 129,825.25, 179,158.85 and 70,209.25

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Solution

The fourth proportional to 129,825.25, 179,158.85 and 70,209.25 is: 96,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,825.25 : 179,158.85 = 70,209.25 : x
  2. Step 2: Convert to fraction form
    129,825.25/179,158.85 = 70,209.25/x
  3. Step 3: Cross multiply
    129,825.25x = 179,158.85 × 70,209.25
  4. Step 4: Simplify right side
    129,825.25x = 12,578,608,489.36
  5. Step 5: Solve for x
    x = 12,578,608,489.36/129,825.25
  6. Step 6: Final answer
    x = 96,888.77

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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.