Home / 137,788.40-206,629.45-53,537.47

Finding the Fourth Proportional to 137,788.40, 206,629.45 and 53,537.47

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Solution

The fourth proportional to 137,788.40, 206,629.45 and 53,537.47 is: 80,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,788.40 : 206,629.45 = 53,537.47 : x
  2. Step 2: Convert to fraction form
    137,788.40/206,629.45 = 53,537.47/x
  3. Step 3: Cross multiply
    137,788.40x = 206,629.45 × 53,537.47
  4. Step 4: Simplify right side
    137,788.40x = 11,062,417,980.49
  5. Step 5: Solve for x
    x = 11,062,417,980.49/137,788.40
  6. Step 6: Final answer
    x = 80,285.55

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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.