Home / 208,217.13-287,341.65-112,725.87

Finding the Fourth Proportional to 208,217.13, 287,341.65 and 112,725.87

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Solution

The fourth proportional to 208,217.13, 287,341.65 and 112,725.87 is: 155,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,217.13 : 287,341.65 = 112,725.87 : x
  2. Step 2: Convert to fraction form
    208,217.13/287,341.65 = 112,725.87/x
  3. Step 3: Cross multiply
    208,217.13x = 287,341.65 × 112,725.87
  4. Step 4: Simplify right side
    208,217.13x = 32,390,837,483.49
  5. Step 5: Solve for x
    x = 32,390,837,483.49/208,217.13
  6. Step 6: Final answer
    x = 155,562.79

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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.