Home / 105,061.50-144,984.87-67,335.75

Finding the Fourth Proportional to 105,061.50, 144,984.87 and 67,335.75

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Solution

The fourth proportional to 105,061.50, 144,984.87 and 67,335.75 is: 92,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,061.50 : 144,984.87 = 67,335.75 : x
  2. Step 2: Convert to fraction form
    105,061.50/144,984.87 = 67,335.75/x
  3. Step 3: Cross multiply
    105,061.50x = 144,984.87 × 67,335.75
  4. Step 4: Simplify right side
    105,061.50x = 9,762,664,960.10
  5. Step 5: Solve for x
    x = 9,762,664,960.10/105,061.50
  6. Step 6: Final answer
    x = 92,923.34

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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.