Home / 161,807.90-243,003.45-156,559.10

Finding the Fourth Proportional to 161,807.90, 243,003.45 and 156,559.10

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Solution

The fourth proportional to 161,807.90, 243,003.45 and 156,559.10 is: 235,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,807.90 : 243,003.45 = 156,559.10 : x
  2. Step 2: Convert to fraction form
    161,807.90/243,003.45 = 156,559.10/x
  3. Step 3: Cross multiply
    161,807.90x = 243,003.45 × 156,559.10
  4. Step 4: Simplify right side
    161,807.90x = 38,044,401,428.90
  5. Step 5: Solve for x
    x = 38,044,401,428.90/161,807.90
  6. Step 6: Final answer
    x = 235,120.79

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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.