Home / 105,475.12-145,519.46-60,120.38

Finding the Fourth Proportional to 105,475.12, 145,519.46 and 60,120.38

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Solution

The fourth proportional to 105,475.12, 145,519.46 and 60,120.38 is: 82,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,475.12 : 145,519.46 = 60,120.38 : x
  2. Step 2: Convert to fraction form
    105,475.12/145,519.46 = 60,120.38/x
  3. Step 3: Cross multiply
    105,475.12x = 145,519.46 × 60,120.38
  4. Step 4: Simplify right side
    105,475.12x = 8,748,685,232.59
  5. Step 5: Solve for x
    x = 8,748,685,232.59/105,475.12
  6. Step 6: Final answer
    x = 82,945.49

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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.