Home / 137,906.59-190,306.65-76,652.47

Finding the Fourth Proportional to 137,906.59, 190,306.65 and 76,652.47

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Solution

The fourth proportional to 137,906.59, 190,306.65 and 76,652.47 is: 105,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,906.59 : 190,306.65 = 76,652.47 : x
  2. Step 2: Convert to fraction form
    137,906.59/190,306.65 = 76,652.47/x
  3. Step 3: Cross multiply
    137,906.59x = 190,306.65 × 76,652.47
  4. Step 4: Simplify right side
    137,906.59x = 14,587,474,779.93
  5. Step 5: Solve for x
    x = 14,587,474,779.93/137,906.59
  6. Step 6: Final answer
    x = 105,777.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.