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Finding the Fourth Proportional to 159,758.88, 220,479.48 and 88,152.72

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Solution

The fourth proportional to 159,758.88, 220,479.48 and 88,152.72 is: 121,657.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,758.88 : 220,479.48 = 88,152.72 : x
  2. Step 2: Convert to fraction form
    159,758.88/220,479.48 = 88,152.72/x
  3. Step 3: Cross multiply
    159,758.88x = 220,479.48 × 88,152.72
  4. Step 4: Simplify right side
    159,758.88x = 19,435,865,866.19
  5. Step 5: Solve for x
    x = 19,435,865,866.19/159,758.88
  6. Step 6: Final answer
    x = 121,657.50

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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.