Home / 127,867.55-191,856.65-68,634.05

Finding the Fourth Proportional to 127,867.55, 191,856.65 and 68,634.05

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Solution

The fourth proportional to 127,867.55, 191,856.65 and 68,634.05 is: 102,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,867.55 : 191,856.65 = 68,634.05 : x
  2. Step 2: Convert to fraction form
    127,867.55/191,856.65 = 68,634.05/x
  3. Step 3: Cross multiply
    127,867.55x = 191,856.65 × 68,634.05
  4. Step 4: Simplify right side
    127,867.55x = 13,167,897,606.48
  5. Step 5: Solve for x
    x = 13,167,897,606.48/127,867.55
  6. Step 6: Final answer
    x = 102,980.77

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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.