Home / 100,331.87-138,430.42-62,073.03

Finding the Fourth Proportional to 100,331.87, 138,430.42 and 62,073.03

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Solution

The fourth proportional to 100,331.87, 138,430.42 and 62,073.03 is: 85,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,331.87 : 138,430.42 = 62,073.03 : x
  2. Step 2: Convert to fraction form
    100,331.87/138,430.42 = 62,073.03/x
  3. Step 3: Cross multiply
    100,331.87x = 138,430.42 × 62,073.03
  4. Step 4: Simplify right side
    100,331.87x = 8,592,795,977.50
  5. Step 5: Solve for x
    x = 8,592,795,977.50/100,331.87
  6. Step 6: Final answer
    x = 85,643.74

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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.