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Finding the Fourth Proportional to 88,418.84, 132,628.26 and 72,803.66

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Solution

The fourth proportional to 88,418.84, 132,628.26 and 72,803.66 is: 109,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,418.84 : 132,628.26 = 72,803.66 : x
  2. Step 2: Convert to fraction form
    88,418.84/132,628.26 = 72,803.66/x
  3. Step 3: Cross multiply
    88,418.84x = 132,628.26 × 72,803.66
  4. Step 4: Simplify right side
    88,418.84x = 9,655,822,747.43
  5. Step 5: Solve for x
    x = 9,655,822,747.43/88,418.84
  6. Step 6: Final answer
    x = 109,205.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.