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Finding the Fourth Proportional to 154,566, 213,301.08 and 87,498

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Solution

The fourth proportional to 154,566, 213,301.08 and 87,498 is: 120,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,566 : 213,301.08 = 87,498 : x
  2. Step 2: Convert to fraction form
    154,566/213,301.08 = 87,498/x
  3. Step 3: Cross multiply
    154,566x = 213,301.08 × 87,498
  4. Step 4: Simplify right side
    154,566x = 18,663,417,897.84
  5. Step 5: Solve for x
    x = 18,663,417,897.84/154,566
  6. Step 6: Final answer
    x = 120,747.24

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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.