Home / 125,728.06-173,509.35-69,144.70

Finding the Fourth Proportional to 125,728.06, 173,509.35 and 69,144.70

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Solution

The fourth proportional to 125,728.06, 173,509.35 and 69,144.70 is: 95,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,728.06 : 173,509.35 = 69,144.70 : x
  2. Step 2: Convert to fraction form
    125,728.06/173,509.35 = 69,144.70/x
  3. Step 3: Cross multiply
    125,728.06x = 173,509.35 × 69,144.70
  4. Step 4: Simplify right side
    125,728.06x = 11,997,251,952.95
  5. Step 5: Solve for x
    x = 11,997,251,952.95/125,728.06
  6. Step 6: Final answer
    x = 95,422.23

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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.