Home / 201,895.25-278,621.21-112,477.01

Finding the Fourth Proportional to 201,895.25, 278,621.21 and 112,477.01

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Solution

The fourth proportional to 201,895.25, 278,621.21 and 112,477.01 is: 155,221.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,895.25 : 278,621.21 = 112,477.01 : x
  2. Step 2: Convert to fraction form
    201,895.25/278,621.21 = 112,477.01/x
  3. Step 3: Cross multiply
    201,895.25x = 278,621.21 × 112,477.01
  4. Step 4: Simplify right side
    201,895.25x = 31,338,480,061.00
  5. Step 5: Solve for x
    x = 31,338,480,061.00/201,895.25
  6. Step 6: Final answer
    x = 155,221.48

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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.