Home / 201,763.24-278,434.02-112,339.24

Finding the Fourth Proportional to 201,763.24, 278,434.02 and 112,339.24

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Solution

The fourth proportional to 201,763.24, 278,434.02 and 112,339.24 is: 155,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,763.24 : 278,434.02 = 112,339.24 : x
  2. Step 2: Convert to fraction form
    201,763.24/278,434.02 = 112,339.24/x
  3. Step 3: Cross multiply
    201,763.24x = 278,434.02 × 112,339.24
  4. Step 4: Simplify right side
    201,763.24x = 31,279,066,196.94
  5. Step 5: Solve for x
    x = 31,279,066,196.94/201,763.24
  6. Step 6: Final answer
    x = 155,028.57

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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.