Home / 208,020.18-287,067.68-112,526.85

Finding the Fourth Proportional to 208,020.18, 287,067.68 and 112,526.85

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Solution

The fourth proportional to 208,020.18, 287,067.68 and 112,526.85 is: 155,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,020.18 : 287,067.68 = 112,526.85 : x
  2. Step 2: Convert to fraction form
    208,020.18/287,067.68 = 112,526.85/x
  3. Step 3: Cross multiply
    208,020.18x = 287,067.68 × 112,526.85
  4. Step 4: Simplify right side
    208,020.18x = 32,302,822,703.05
  5. Step 5: Solve for x
    x = 32,302,822,703.05/208,020.18
  6. Step 6: Final answer
    x = 155,286.96

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1.5x scale

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.