Home / 208,397.26-287,588.65-112,903.95

Finding the Fourth Proportional to 208,397.26, 287,588.65 and 112,903.95

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Solution

The fourth proportional to 208,397.26, 287,588.65 and 112,903.95 is: 155,807.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,397.26 : 287,588.65 = 112,903.95 : x
  2. Step 2: Convert to fraction form
    208,397.26/287,588.65 = 112,903.95/x
  3. Step 3: Cross multiply
    208,397.26x = 287,588.65 × 112,903.95
  4. Step 4: Simplify right side
    208,397.26x = 32,469,894,560.17
  5. Step 5: Solve for x
    x = 32,469,894,560.17/208,397.26
  6. Step 6: Final answer
    x = 155,807.68

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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.