Home / 208,119.14-287,206.43-112,627.82

Finding the Fourth Proportional to 208,119.14, 287,206.43 and 112,627.82

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Solution

The fourth proportional to 208,119.14, 287,206.43 and 112,627.82 is: 155,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,119.14 : 287,206.43 = 112,627.82 : x
  2. Step 2: Convert to fraction form
    208,119.14/287,206.43 = 112,627.82/x
  3. Step 3: Cross multiply
    208,119.14x = 287,206.43 × 112,627.82
  4. Step 4: Simplify right side
    208,119.14x = 32,347,432,946.42
  5. Step 5: Solve for x
    x = 32,347,432,946.42/208,119.14
  6. Step 6: Final answer
    x = 155,427.48

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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.