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Finding the Fourth Proportional to 163,645.71, 245,539.62 and 88,818.72

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Solution

The fourth proportional to 163,645.71, 245,539.62 and 88,818.72 is: 133,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,645.71 : 245,539.62 = 88,818.72 : x
  2. Step 2: Convert to fraction form
    163,645.71/245,539.62 = 88,818.72/x
  3. Step 3: Cross multiply
    163,645.71x = 245,539.62 × 88,818.72
  4. Step 4: Simplify right side
    163,645.71x = 21,808,514,757.69
  5. Step 5: Solve for x
    x = 21,808,514,757.69/163,645.71
  6. Step 6: Final answer
    x = 133,266.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.