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Finding the Fourth Proportional to 122,848.32, 169,528.72 and 69,133.32

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Solution

The fourth proportional to 122,848.32, 169,528.72 and 69,133.32 is: 95,402.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,848.32 : 169,528.72 = 69,133.32 : x
  2. Step 2: Convert to fraction form
    122,848.32/169,528.72 = 69,133.32/x
  3. Step 3: Cross multiply
    122,848.32x = 169,528.72 × 69,133.32
  4. Step 4: Simplify right side
    122,848.32x = 11,720,083,248.95
  5. Step 5: Solve for x
    x = 11,720,083,248.95/122,848.32
  6. Step 6: Final answer
    x = 95,402.88

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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.