Home / 105,513.65-145,608.44-60,191.55

Finding the Fourth Proportional to 105,513.65, 145,608.44 and 60,191.55

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Solution

The fourth proportional to 105,513.65, 145,608.44 and 60,191.55 is: 83,064.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,513.65 : 145,608.44 = 60,191.55 : x
  2. Step 2: Convert to fraction form
    105,513.65/145,608.44 = 60,191.55/x
  3. Step 3: Cross multiply
    105,513.65x = 145,608.44 × 60,191.55
  4. Step 4: Simplify right side
    105,513.65x = 8,764,397,119.12
  5. Step 5: Solve for x
    x = 8,764,397,119.12/105,513.65
  6. Step 6: Final answer
    x = 83,064.11

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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.