Home / 105,764.50-145,952.34-60,439.60

Finding the Fourth Proportional to 105,764.50, 145,952.34 and 60,439.60

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Solution

The fourth proportional to 105,764.50, 145,952.34 and 60,439.60 is: 83,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,764.50 : 145,952.34 = 60,439.60 : x
  2. Step 2: Convert to fraction form
    105,764.50/145,952.34 = 60,439.60/x
  3. Step 3: Cross multiply
    105,764.50x = 145,952.34 × 60,439.60
  4. Step 4: Simplify right side
    105,764.50x = 8,821,301,048.66
  5. Step 5: Solve for x
    x = 8,821,301,048.66/105,764.50
  6. Step 6: Final answer
    x = 83,405.12

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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.