Home / 209,051.28-288,488.04-113,561.04

Finding the Fourth Proportional to 209,051.28, 288,488.04 and 113,561.04

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Solution

The fourth proportional to 209,051.28, 288,488.04 and 113,561.04 is: 156,712.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,051.28 : 288,488.04 = 113,561.04 : x
  2. Step 2: Convert to fraction form
    209,051.28/288,488.04 = 113,561.04/x
  3. Step 3: Cross multiply
    209,051.28x = 288,488.04 × 113,561.04
  4. Step 4: Simplify right side
    209,051.28x = 32,761,001,849.96
  5. Step 5: Solve for x
    x = 32,761,001,849.96/209,051.28
  6. Step 6: Final answer
    x = 156,712.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.