Home / 209,899.60-314,849.40-110,021.20

Finding the Fourth Proportional to 209,899.60, 314,849.40 and 110,021.20

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Solution

The fourth proportional to 209,899.60, 314,849.40 and 110,021.20 is: 165,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,899.60 : 314,849.40 = 110,021.20 : x
  2. Step 2: Convert to fraction form
    209,899.60/314,849.40 = 110,021.20/x
  3. Step 3: Cross multiply
    209,899.60x = 314,849.40 × 110,021.20
  4. Step 4: Simplify right side
    209,899.60x = 34,640,108,807.28
  5. Step 5: Solve for x
    x = 34,640,108,807.28/209,899.60
  6. Step 6: Final answer
    x = 165,031.80

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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.