Home / 107,515.80-161,346.60-69,984.45

Finding the Fourth Proportional to 107,515.80, 161,346.60 and 69,984.45

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Solution

The fourth proportional to 107,515.80, 161,346.60 and 69,984.45 is: 105,024.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,515.80 : 161,346.60 = 69,984.45 : x
  2. Step 2: Convert to fraction form
    107,515.80/161,346.60 = 69,984.45/x
  3. Step 3: Cross multiply
    107,515.80x = 161,346.60 × 69,984.45
  4. Step 4: Simplify right side
    107,515.80x = 11,291,753,060.37
  5. Step 5: Solve for x
    x = 11,291,753,060.37/107,515.80
  6. Step 6: Final answer
    x = 105,024.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.