Home / 109,621.75-151,278.15-59,320.75

Finding the Fourth Proportional to 109,621.75, 151,278.15 and 59,320.75

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Solution

The fourth proportional to 109,621.75, 151,278.15 and 59,320.75 is: 81,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,621.75 : 151,278.15 = 59,320.75 : x
  2. Step 2: Convert to fraction form
    109,621.75/151,278.15 = 59,320.75/x
  3. Step 3: Cross multiply
    109,621.75x = 151,278.15 × 59,320.75
  4. Step 4: Simplify right side
    109,621.75x = 8,973,933,316.61
  5. Step 5: Solve for x
    x = 8,973,933,316.61/109,621.75
  6. Step 6: Final answer
    x = 81,862.71

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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.