Home / 100,314.81-138,430.46-60,004.55

Finding the Fourth Proportional to 100,314.81, 138,430.46 and 60,004.55

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Solution

The fourth proportional to 100,314.81, 138,430.46 and 60,004.55 is: 82,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,314.81 : 138,430.46 = 60,004.55 : x
  2. Step 2: Convert to fraction form
    100,314.81/138,430.46 = 60,004.55/x
  3. Step 3: Cross multiply
    100,314.81x = 138,430.46 × 60,004.55
  4. Step 4: Simplify right side
    100,314.81x = 8,306,456,466.42
  5. Step 5: Solve for x
    x = 8,306,456,466.42/100,314.81
  6. Step 6: Final answer
    x = 82,803.89

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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.