Home / 112,077.75-154,667.30-61,777.83

Finding the Fourth Proportional to 112,077.75, 154,667.30 and 61,777.83

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Solution

The fourth proportional to 112,077.75, 154,667.30 and 61,777.83 is: 85,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,077.75 : 154,667.30 = 61,777.83 : x
  2. Step 2: Convert to fraction form
    112,077.75/154,667.30 = 61,777.83/x
  3. Step 3: Cross multiply
    112,077.75x = 154,667.30 × 61,777.83
  4. Step 4: Simplify right side
    112,077.75x = 9,555,009,857.07
  5. Step 5: Solve for x
    x = 9,555,009,857.07/112,077.75
  6. Step 6: Final answer
    x = 85,253.41

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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.