Home / 202,018.25-278,785.80-111,372.17

Finding the Fourth Proportional to 202,018.25, 278,785.80 and 111,372.17

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Solution

The fourth proportional to 202,018.25, 278,785.80 and 111,372.17 is: 153,693.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,018.25 : 278,785.80 = 111,372.17 : x
  2. Step 2: Convert to fraction form
    202,018.25/278,785.80 = 111,372.17/x
  3. Step 3: Cross multiply
    202,018.25x = 278,785.80 × 111,372.17
  4. Step 4: Simplify right side
    202,018.25x = 31,048,978,117.26
  5. Step 5: Solve for x
    x = 31,048,978,117.26/202,018.25
  6. Step 6: Final answer
    x = 153,693.92

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1.5x scale

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.