Home / 208,351.12-287,525.28-112,857.52

Finding the Fourth Proportional to 208,351.12, 287,525.28 and 112,857.52

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Solution

The fourth proportional to 208,351.12, 287,525.28 and 112,857.52 is: 155,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,351.12 : 287,525.28 = 112,857.52 : x
  2. Step 2: Convert to fraction form
    208,351.12/287,525.28 = 112,857.52/x
  3. Step 3: Cross multiply
    208,351.12x = 287,525.28 × 112,857.52
  4. Step 4: Simplify right side
    208,351.12x = 32,449,390,038.11
  5. Step 5: Solve for x
    x = 32,449,390,038.11/208,351.12
  6. Step 6: Final answer
    x = 155,743.78

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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.