Home / 161,503.43-242,076.75-66,681.33

Finding the Fourth Proportional to 161,503.43, 242,076.75 and 66,681.33

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Solution

The fourth proportional to 161,503.43, 242,076.75 and 66,681.33 is: 99,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,503.43 : 242,076.75 = 66,681.33 : x
  2. Step 2: Convert to fraction form
    161,503.43/242,076.75 = 66,681.33/x
  3. Step 3: Cross multiply
    161,503.43x = 242,076.75 × 66,681.33
  4. Step 4: Simplify right side
    161,503.43x = 16,142,000,231.00
  5. Step 5: Solve for x
    x = 16,142,000,231.00/161,503.43
  6. Step 6: Final answer
    x = 99,948.35

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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.