Home / 112,338.90-155,004.84-71,519.36

Finding the Fourth Proportional to 112,338.90, 155,004.84 and 71,519.36

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Solution

The fourth proportional to 112,338.90, 155,004.84 and 71,519.36 is: 98,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,338.90 : 155,004.84 = 71,519.36 : x
  2. Step 2: Convert to fraction form
    112,338.90/155,004.84 = 71,519.36/x
  3. Step 3: Cross multiply
    112,338.90x = 155,004.84 × 71,519.36
  4. Step 4: Simplify right side
    112,338.90x = 11,085,846,178.68
  5. Step 5: Solve for x
    x = 11,085,846,178.68/112,338.90
  6. Step 6: Final answer
    x = 98,682.17

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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.