Home / 127,970.22-191,955.30-68,724.39

Finding the Fourth Proportional to 127,970.22, 191,955.30 and 68,724.39

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Solution

The fourth proportional to 127,970.22, 191,955.30 and 68,724.39 is: 103,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,970.22 : 191,955.30 = 68,724.39 : x
  2. Step 2: Convert to fraction form
    127,970.22/191,955.30 = 68,724.39/x
  3. Step 3: Cross multiply
    127,970.22x = 191,955.30 × 68,724.39
  4. Step 4: Simplify right side
    127,970.22x = 13,192,010,899.77
  5. Step 5: Solve for x
    x = 13,192,010,899.77/127,970.22
  6. Step 6: Final answer
    x = 103,086.57

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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.