Home / 105,389.20-145,440.84-60,074.02

Finding the Fourth Proportional to 105,389.20, 145,440.84 and 60,074.02

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Solution

The fourth proportional to 105,389.20, 145,440.84 and 60,074.02 is: 82,904.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,389.20 : 145,440.84 = 60,074.02 : x
  2. Step 2: Convert to fraction form
    105,389.20/145,440.84 = 60,074.02/x
  3. Step 3: Cross multiply
    105,389.20x = 145,440.84 × 60,074.02
  4. Step 4: Simplify right side
    105,389.20x = 8,737,215,930.98
  5. Step 5: Solve for x
    x = 8,737,215,930.98/105,389.20
  6. Step 6: Final answer
    x = 82,904.28

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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.