Home / 107,937.40-161,733.30-68,423.80

Finding the Fourth Proportional to 107,937.40, 161,733.30 and 68,423.80

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Solution

The fourth proportional to 107,937.40, 161,733.30 and 68,423.80 is: 102,526.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,937.40 : 161,733.30 = 68,423.80 : x
  2. Step 2: Convert to fraction form
    107,937.40/161,733.30 = 68,423.80/x
  3. Step 3: Cross multiply
    107,937.40x = 161,733.30 × 68,423.80
  4. Step 4: Simplify right side
    107,937.40x = 11,066,406,972.54
  5. Step 5: Solve for x
    x = 11,066,406,972.54/107,937.40
  6. Step 6: Final answer
    x = 102,526.16

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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.