Home / 208,428.33-287,631.35-112,934.95

Finding the Fourth Proportional to 208,428.33, 287,631.35 and 112,934.95

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Solution

The fourth proportional to 208,428.33, 287,631.35 and 112,934.95 is: 155,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,428.33 : 287,631.35 = 112,934.95 : x
  2. Step 2: Convert to fraction form
    208,428.33/287,631.35 = 112,934.95/x
  3. Step 3: Cross multiply
    208,428.33x = 287,631.35 × 112,934.95
  4. Step 4: Simplify right side
    208,428.33x = 32,483,632,130.68
  5. Step 5: Solve for x
    x = 32,483,632,130.68/208,428.33
  6. Step 6: Final answer
    x = 155,850.37

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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.