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Finding the Fourth Proportional to 105,513.84, 145,620.84 and 60,203.04

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Solution

The fourth proportional to 105,513.84, 145,620.84 and 60,203.04 is: 83,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,513.84 : 145,620.84 = 60,203.04 : x
  2. Step 2: Convert to fraction form
    105,513.84/145,620.84 = 60,203.04/x
  3. Step 3: Cross multiply
    105,513.84x = 145,620.84 × 60,203.04
  4. Step 4: Simplify right side
    105,513.84x = 8,766,817,255.35
  5. Step 5: Solve for x
    x = 8,766,817,255.35/105,513.84
  6. Step 6: Final answer
    x = 83,086.89

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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.