Home / 201,864.13-278,572.50-112,440.13

Finding the Fourth Proportional to 201,864.13, 278,572.50 and 112,440.13

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Solution

The fourth proportional to 201,864.13, 278,572.50 and 112,440.13 is: 155,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,864.13 : 278,572.50 = 112,440.13 : x
  2. Step 2: Convert to fraction form
    201,864.13/278,572.50 = 112,440.13/x
  3. Step 3: Cross multiply
    201,864.13x = 278,572.50 × 112,440.13
  4. Step 4: Simplify right side
    201,864.13x = 31,322,728,114.43
  5. Step 5: Solve for x
    x = 31,322,728,114.43/201,864.13
  6. Step 6: Final answer
    x = 155,167.38

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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.