Home / 112,260.17-154,919.04-76,512.63

Finding the Fourth Proportional to 112,260.17, 154,919.04 and 76,512.63

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Solution

The fourth proportional to 112,260.17, 154,919.04 and 76,512.63 is: 105,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,260.17 : 154,919.04 = 76,512.63 : x
  2. Step 2: Convert to fraction form
    112,260.17/154,919.04 = 76,512.63/x
  3. Step 3: Cross multiply
    112,260.17x = 154,919.04 × 76,512.63
  4. Step 4: Simplify right side
    112,260.17x = 11,853,262,417.61
  5. Step 5: Solve for x
    x = 11,853,262,417.61/112,260.17
  6. Step 6: Final answer
    x = 105,587.43

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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.