Home / 137,748.60-206,733.47-71,208.11

Finding the Fourth Proportional to 137,748.60, 206,733.47 and 71,208.11

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Solution

The fourth proportional to 137,748.60, 206,733.47 and 71,208.11 is: 106,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,748.60 : 206,733.47 = 71,208.11 : x
  2. Step 2: Convert to fraction form
    137,748.60/206,733.47 = 71,208.11/x
  3. Step 3: Cross multiply
    137,748.60x = 206,733.47 × 71,208.11
  4. Step 4: Simplify right side
    137,748.60x = 14,721,099,833.23
  5. Step 5: Solve for x
    x = 14,721,099,833.23/137,748.60
  6. Step 6: Final answer
    x = 106,869.32

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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.