Home / 107,712.24-148,667.40-69,920.88

Finding the Fourth Proportional to 107,712.24, 148,667.40 and 69,920.88

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Solution

The fourth proportional to 107,712.24, 148,667.40 and 69,920.88 is: 96,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,712.24 : 148,667.40 = 69,920.88 : x
  2. Step 2: Convert to fraction form
    107,712.24/148,667.40 = 69,920.88/x
  3. Step 3: Cross multiply
    107,712.24x = 148,667.40 × 69,920.88
  4. Step 4: Simplify right side
    107,712.24x = 10,394,955,435.31
  5. Step 5: Solve for x
    x = 10,394,955,435.31/107,712.24
  6. Step 6: Final answer
    x = 96,506.72

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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.