Home / 201,765.24-278,436.78-112,341.24

Finding the Fourth Proportional to 201,765.24, 278,436.78 and 112,341.24

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Solution

The fourth proportional to 201,765.24, 278,436.78 and 112,341.24 is: 155,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,765.24 : 278,436.78 = 112,341.24 : x
  2. Step 2: Convert to fraction form
    201,765.24/278,436.78 = 112,341.24/x
  3. Step 3: Cross multiply
    201,765.24x = 278,436.78 × 112,341.24
  4. Step 4: Simplify right side
    201,765.24x = 31,279,933,126.81
  5. Step 5: Solve for x
    x = 31,279,933,126.81/201,765.24
  6. Step 6: Final answer
    x = 155,031.33

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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.