Home / 105,486.39-145,542.42-60,147.84

Finding the Fourth Proportional to 105,486.39, 145,542.42 and 60,147.84

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Solution

The fourth proportional to 105,486.39, 145,542.42 and 60,147.84 is: 82,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,486.39 : 145,542.42 = 60,147.84 : x
  2. Step 2: Convert to fraction form
    105,486.39/145,542.42 = 60,147.84/x
  3. Step 3: Cross multiply
    105,486.39x = 145,542.42 × 60,147.84
  4. Step 4: Simplify right side
    105,486.39x = 8,754,062,191.37
  5. Step 5: Solve for x
    x = 8,754,062,191.37/105,486.39
  6. Step 6: Final answer
    x = 82,987.60

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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.