Home / 121,567.72-167,756.62-67,856.19

Finding the Fourth Proportional to 121,567.72, 167,756.62 and 67,856.19

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Solution

The fourth proportional to 121,567.72, 167,756.62 and 67,856.19 is: 93,637.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,567.72 : 167,756.62 = 67,856.19 : x
  2. Step 2: Convert to fraction form
    121,567.72/167,756.62 = 67,856.19/x
  3. Step 3: Cross multiply
    121,567.72x = 167,756.62 × 67,856.19
  4. Step 4: Simplify right side
    121,567.72x = 11,383,325,588.52
  5. Step 5: Solve for x
    x = 11,383,325,588.52/121,567.72
  6. Step 6: Final answer
    x = 93,637.73

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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.