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Finding the Fourth Proportional to 102,873.39, 141,886.80 and 88,556.76

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Solution

The fourth proportional to 102,873.39, 141,886.80 and 88,556.76 is: 122,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,873.39 : 141,886.80 = 88,556.76 : x
  2. Step 2: Convert to fraction form
    102,873.39/141,886.80 = 88,556.76/x
  3. Step 3: Cross multiply
    102,873.39x = 141,886.80 × 88,556.76
  4. Step 4: Simplify right side
    102,873.39x = 12,565,035,294.77
  5. Step 5: Solve for x
    x = 12,565,035,294.77/102,873.39
  6. Step 6: Final answer
    x = 122,140.77

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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.