Home / 161,503.38-242,076.66-66,681.30

Finding the Fourth Proportional to 161,503.38, 242,076.66 and 66,681.30

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Solution

The fourth proportional to 161,503.38, 242,076.66 and 66,681.30 is: 99,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,503.38 : 242,076.66 = 66,681.30 : x
  2. Step 2: Convert to fraction form
    161,503.38/242,076.66 = 66,681.30/x
  3. Step 3: Cross multiply
    161,503.38x = 242,076.66 × 66,681.30
  4. Step 4: Simplify right side
    161,503.38x = 16,141,986,388.46
  5. Step 5: Solve for x
    x = 16,141,986,388.46/161,503.38
  6. Step 6: Final answer
    x = 99,948.29

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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.