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Finding the Fourth Proportional to 137,673.60, 206,510.40 and 106,569.60

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Solution

The fourth proportional to 137,673.60, 206,510.40 and 106,569.60 is: 159,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,673.60 : 206,510.40 = 106,569.60 : x
  2. Step 2: Convert to fraction form
    137,673.60/206,510.40 = 106,569.60/x
  3. Step 3: Cross multiply
    137,673.60x = 206,510.40 × 106,569.60
  4. Step 4: Simplify right side
    137,673.60x = 22,007,730,723.84
  5. Step 5: Solve for x
    x = 22,007,730,723.84/137,673.60
  6. Step 6: Final answer
    x = 159,854.40

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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.