Home / 208,081.24-287,150.07-112,585.84

Finding the Fourth Proportional to 208,081.24, 287,150.07 and 112,585.84

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Solution

The fourth proportional to 208,081.24, 287,150.07 and 112,585.84 is: 155,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,081.24 : 287,150.07 = 112,585.84 : x
  2. Step 2: Convert to fraction form
    208,081.24/287,150.07 = 112,585.84/x
  3. Step 3: Cross multiply
    208,081.24x = 287,150.07 × 112,585.84
  4. Step 4: Simplify right side
    208,081.24x = 32,329,031,837.01
  5. Step 5: Solve for x
    x = 32,329,031,837.01/208,081.24
  6. Step 6: Final answer
    x = 155,367.35

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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.