Home / 105,379.20-145,427.04-60,064.02

Finding the Fourth Proportional to 105,379.20, 145,427.04 and 60,064.02

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Solution

The fourth proportional to 105,379.20, 145,427.04 and 60,064.02 is: 82,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,379.20 : 145,427.04 = 60,064.02 : x
  2. Step 2: Convert to fraction form
    105,379.20/145,427.04 = 60,064.02/x
  3. Step 3: Cross multiply
    105,379.20x = 145,427.04 × 60,064.02
  4. Step 4: Simplify right side
    105,379.20x = 8,734,932,639.10
  5. Step 5: Solve for x
    x = 8,734,932,639.10/105,379.20
  6. Step 6: Final answer
    x = 82,890.48

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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.