Home / 201,861.13-278,568.36-112,437.13

Finding the Fourth Proportional to 201,861.13, 278,568.36 and 112,437.13

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Solution

The fourth proportional to 201,861.13, 278,568.36 and 112,437.13 is: 155,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,861.13 : 278,568.36 = 112,437.13 : x
  2. Step 2: Convert to fraction form
    201,861.13/278,568.36 = 112,437.13/x
  3. Step 3: Cross multiply
    201,861.13x = 278,568.36 × 112,437.13
  4. Step 4: Simplify right side
    201,861.13x = 31,321,426,907.21
  5. Step 5: Solve for x
    x = 31,321,426,907.21/201,861.13
  6. Step 6: Final answer
    x = 155,163.24

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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.