Home / 187,616.32-258,859.20-120,587.20

Finding the Fourth Proportional to 187,616.32, 258,859.20 and 120,587.20

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Solution

The fourth proportional to 187,616.32, 258,859.20 and 120,587.20 is: 166,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,616.32 : 258,859.20 = 120,587.20 : x
  2. Step 2: Convert to fraction form
    187,616.32/258,859.20 = 120,587.20/x
  3. Step 3: Cross multiply
    187,616.32x = 258,859.20 × 120,587.20
  4. Step 4: Simplify right side
    187,616.32x = 31,215,106,122.24
  5. Step 5: Solve for x
    x = 31,215,106,122.24/187,616.32
  6. Step 6: Final answer
    x = 166,377.35

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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.