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Finding the Fourth Proportional to 163,707.42, 245,560.22 and 42,127.86

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Solution

The fourth proportional to 163,707.42, 245,560.22 and 42,127.86 is: 63,191.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,707.42 : 245,560.22 = 42,127.86 : x
  2. Step 2: Convert to fraction form
    163,707.42/245,560.22 = 42,127.86/x
  3. Step 3: Cross multiply
    163,707.42x = 245,560.22 × 42,127.86
  4. Step 4: Simplify right side
    163,707.42x = 10,344,926,569.73
  5. Step 5: Solve for x
    x = 10,344,926,569.73/163,707.42
  6. Step 6: Final answer
    x = 63,191.56

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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.