Home / 112,087.80-154,667.88-76,266.36

Finding the Fourth Proportional to 112,087.80, 154,667.88 and 76,266.36

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Solution

The fourth proportional to 112,087.80, 154,667.88 and 76,266.36 is: 105,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,087.80 : 154,667.88 = 76,266.36 : x
  2. Step 2: Convert to fraction form
    112,087.80/154,667.88 = 76,266.36/x
  3. Step 3: Cross multiply
    112,087.80x = 154,667.88 × 76,266.36
  4. Step 4: Simplify right side
    112,087.80x = 11,795,956,216.52
  5. Step 5: Solve for x
    x = 11,795,956,216.52/112,087.80
  6. Step 6: Final answer
    x = 105,238.54

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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.