Home / 137,182.60-189,301.19-76,748.50

Finding the Fourth Proportional to 137,182.60, 189,301.19 and 76,748.50

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Solution

The fourth proportional to 137,182.60, 189,301.19 and 76,748.50 is: 105,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,182.60 : 189,301.19 = 76,748.50 : x
  2. Step 2: Convert to fraction form
    137,182.60/189,301.19 = 76,748.50/x
  3. Step 3: Cross multiply
    137,182.60x = 189,301.19 × 76,748.50
  4. Step 4: Simplify right side
    137,182.60x = 14,528,582,380.72
  5. Step 5: Solve for x
    x = 14,528,582,380.72/137,182.60
  6. Step 6: Final answer
    x = 105,906.89

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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.