Home / 138,667.08-191,360.46-75,004.92

Finding the Fourth Proportional to 138,667.08, 191,360.46 and 75,004.92

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Solution

The fourth proportional to 138,667.08, 191,360.46 and 75,004.92 is: 103,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,667.08 : 191,360.46 = 75,004.92 : x
  2. Step 2: Convert to fraction form
    138,667.08/191,360.46 = 75,004.92/x
  3. Step 3: Cross multiply
    138,667.08x = 191,360.46 × 75,004.92
  4. Step 4: Simplify right side
    138,667.08x = 14,352,975,993.46
  5. Step 5: Solve for x
    x = 14,352,975,993.46/138,667.08
  6. Step 6: Final answer
    x = 103,506.73

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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.