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Finding the Fourth Proportional to 105,060, 144,982.80 and 67,334.25

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Solution

The fourth proportional to 105,060, 144,982.80 and 67,334.25 is: 92,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,060 : 144,982.80 = 67,334.25 : x
  2. Step 2: Convert to fraction form
    105,060/144,982.80 = 67,334.25/x
  3. Step 3: Cross multiply
    105,060x = 144,982.80 × 67,334.25
  4. Step 4: Simplify right side
    105,060x = 9,762,308,100.90
  5. Step 5: Solve for x
    x = 9,762,308,100.90/105,060
  6. Step 6: Final answer
    x = 92,921.27

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1.5x scale

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.