Home / 105,469.72-145,519.39-60,131.17

Finding the Fourth Proportional to 105,469.72, 145,519.39 and 60,131.17

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Solution

The fourth proportional to 105,469.72, 145,519.39 and 60,131.17 is: 82,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,469.72 : 145,519.39 = 60,131.17 : x
  2. Step 2: Convert to fraction form
    105,469.72/145,519.39 = 60,131.17/x
  3. Step 3: Cross multiply
    105,469.72x = 145,519.39 × 60,131.17
  4. Step 4: Simplify right side
    105,469.72x = 8,750,251,178.39
  5. Step 5: Solve for x
    x = 8,750,251,178.39/105,469.72
  6. Step 6: Final answer
    x = 82,964.58

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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.