Home / 208,422.39-287,622.13-112,929.33

Finding the Fourth Proportional to 208,422.39, 287,622.13 and 112,929.33

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Solution

The fourth proportional to 208,422.39, 287,622.13 and 112,929.33 is: 155,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,422.39 : 287,622.13 = 112,929.33 : x
  2. Step 2: Convert to fraction form
    208,422.39/287,622.13 = 112,929.33/x
  3. Step 3: Cross multiply
    208,422.39x = 287,622.13 × 112,929.33
  4. Step 4: Simplify right side
    208,422.39x = 32,480,974,151.75
  5. Step 5: Solve for x
    x = 32,480,974,151.75/208,422.39
  6. Step 6: Final answer
    x = 155,842.06

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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.