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Finding the Fourth Proportional to 162,275.78, 223,936.20 and 88,685.30

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Solution

The fourth proportional to 162,275.78, 223,936.20 and 88,685.30 is: 122,383.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,275.78 : 223,936.20 = 88,685.30 : x
  2. Step 2: Convert to fraction form
    162,275.78/223,936.20 = 88,685.30/x
  3. Step 3: Cross multiply
    162,275.78x = 223,936.20 × 88,685.30
  4. Step 4: Simplify right side
    162,275.78x = 19,859,849,077.86
  5. Step 5: Solve for x
    x = 19,859,849,077.86/162,275.78
  6. Step 6: Final answer
    x = 122,383.32

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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.