Home / 112,801.05-155,713.47-76,015.33

Finding the Fourth Proportional to 112,801.05, 155,713.47 and 76,015.33

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Solution

The fourth proportional to 112,801.05, 155,713.47 and 76,015.33 is: 104,933.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,801.05 : 155,713.47 = 76,015.33 : x
  2. Step 2: Convert to fraction form
    112,801.05/155,713.47 = 76,015.33/x
  3. Step 3: Cross multiply
    112,801.05x = 155,713.47 × 76,015.33
  4. Step 4: Simplify right side
    112,801.05x = 11,836,611,287.19
  5. Step 5: Solve for x
    x = 11,836,611,287.19/112,801.05
  6. Step 6: Final answer
    x = 104,933.52

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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.