Home / 208,591.04-287,774.20-136,079.18

Finding the Fourth Proportional to 208,591.04, 287,774.20 and 136,079.18

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Solution

The fourth proportional to 208,591.04, 287,774.20 and 136,079.18 is: 187,736.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,591.04 : 287,774.20 = 136,079.18 : x
  2. Step 2: Convert to fraction form
    208,591.04/287,774.20 = 136,079.18/x
  3. Step 3: Cross multiply
    208,591.04x = 287,774.20 × 136,079.18
  4. Step 4: Simplify right side
    208,591.04x = 39,160,077,161.16
  5. Step 5: Solve for x
    x = 39,160,077,161.16/208,591.04
  6. Step 6: Final answer
    x = 187,736.14

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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.