Home / 105,119.28-145,058.80-59,791.20

Finding the Fourth Proportional to 105,119.28, 145,058.80 and 59,791.20

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Solution

The fourth proportional to 105,119.28, 145,058.80 and 59,791.20 is: 82,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,119.28 : 145,058.80 = 59,791.20 : x
  2. Step 2: Convert to fraction form
    105,119.28/145,058.80 = 59,791.20/x
  3. Step 3: Cross multiply
    105,119.28x = 145,058.80 × 59,791.20
  4. Step 4: Simplify right side
    105,119.28x = 8,673,239,722.56
  5. Step 5: Solve for x
    x = 8,673,239,722.56/105,119.28
  6. Step 6: Final answer
    x = 82,508.55

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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.