Home / 109,621.76-151,278.44-59,320.76

Finding the Fourth Proportional to 109,621.76, 151,278.44 and 59,320.76

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Solution

The fourth proportional to 109,621.76, 151,278.44 and 59,320.76 is: 81,862.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,621.76 : 151,278.44 = 59,320.76 : x
  2. Step 2: Convert to fraction form
    109,621.76/151,278.44 = 59,320.76/x
  3. Step 3: Cross multiply
    109,621.76x = 151,278.44 × 59,320.76
  4. Step 4: Simplify right side
    109,621.76x = 8,973,952,032.41
  5. Step 5: Solve for x
    x = 8,973,952,032.41/109,621.76
  6. Step 6: Final answer
    x = 81,862.87

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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.