Home / 139,988.30-193,184.76-76,327.16

Finding the Fourth Proportional to 139,988.30, 193,184.76 and 76,327.16

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Solution

The fourth proportional to 139,988.30, 193,184.76 and 76,327.16 is: 105,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,988.30 : 193,184.76 = 76,327.16 : x
  2. Step 2: Convert to fraction form
    139,988.30/193,184.76 = 76,327.16/x
  3. Step 3: Cross multiply
    139,988.30x = 193,184.76 × 76,327.16
  4. Step 4: Simplify right side
    139,988.30x = 14,745,244,086.08
  5. Step 5: Solve for x
    x = 14,745,244,086.08/139,988.30
  6. Step 6: Final answer
    x = 105,331.97

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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.