Home / 209,927.80-314,690.10-69,614.20

Finding the Fourth Proportional to 209,927.80, 314,690.10 and 69,614.20

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Solution

The fourth proportional to 209,927.80, 314,690.10 and 69,614.20 is: 104,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,927.80 : 314,690.10 = 69,614.20 : x
  2. Step 2: Convert to fraction form
    209,927.80/314,690.10 = 69,614.20/x
  3. Step 3: Cross multiply
    209,927.80x = 314,690.10 × 69,614.20
  4. Step 4: Simplify right side
    209,927.80x = 21,906,899,559.42
  5. Step 5: Solve for x
    x = 21,906,899,559.42/209,927.80
  6. Step 6: Final answer
    x = 104,354.45

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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.