Home / 105,394.20-145,447.74-60,079.02

Finding the Fourth Proportional to 105,394.20, 145,447.74 and 60,079.02

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Solution

The fourth proportional to 105,394.20, 145,447.74 and 60,079.02 is: 82,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,394.20 : 145,447.74 = 60,079.02 : x
  2. Step 2: Convert to fraction form
    105,394.20/145,447.74 = 60,079.02/x
  3. Step 3: Cross multiply
    105,394.20x = 145,447.74 × 60,079.02
  4. Step 4: Simplify right side
    105,394.20x = 8,738,357,680.41
  5. Step 5: Solve for x
    x = 8,738,357,680.41/105,394.20
  6. Step 6: Final answer
    x = 82,911.18

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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.