Home / 112,775.22-155,559.42-72,541.44

Finding the Fourth Proportional to 112,775.22, 155,559.42 and 72,541.44

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Solution

The fourth proportional to 112,775.22, 155,559.42 and 72,541.44 is: 100,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,775.22 : 155,559.42 = 72,541.44 : x
  2. Step 2: Convert to fraction form
    112,775.22/155,559.42 = 72,541.44/x
  3. Step 3: Cross multiply
    112,775.22x = 155,559.42 × 72,541.44
  4. Step 4: Simplify right side
    112,775.22x = 11,284,504,332.36
  5. Step 5: Solve for x
    x = 11,284,504,332.36/112,775.22
  6. Step 6: Final answer
    x = 100,061.91

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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.