Home / 201,795.32-278,479.40-111,151.59

Finding the Fourth Proportional to 201,795.32, 278,479.40 and 111,151.59

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Solution

The fourth proportional to 201,795.32, 278,479.40 and 111,151.59 is: 153,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,795.32 : 278,479.40 = 111,151.59 : x
  2. Step 2: Convert to fraction form
    201,795.32/278,479.40 = 111,151.59/x
  3. Step 3: Cross multiply
    201,795.32x = 278,479.40 × 111,151.59
  4. Step 4: Simplify right side
    201,795.32x = 30,953,427,536.49
  5. Step 5: Solve for x
    x = 30,953,427,536.49/201,795.32
  6. Step 6: Final answer
    x = 153,390.22

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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.