Home / 105,888.75-146,159.28-68,163

Finding the Fourth Proportional to 105,888.75, 146,159.28 and 68,163

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Solution

The fourth proportional to 105,888.75, 146,159.28 and 68,163 is: 94,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,888.75 : 146,159.28 = 68,163 : x
  2. Step 2: Convert to fraction form
    105,888.75/146,159.28 = 68,163/x
  3. Step 3: Cross multiply
    105,888.75x = 146,159.28 × 68,163
  4. Step 4: Simplify right side
    105,888.75x = 9,962,655,002.64
  5. Step 5: Solve for x
    x = 9,962,655,002.64/105,888.75
  6. Step 6: Final answer
    x = 94,086.06

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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.