Home / 121,278.96-167,365.07-67,564.11

Finding the Fourth Proportional to 121,278.96, 167,365.07 and 67,564.11

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Solution

The fourth proportional to 121,278.96, 167,365.07 and 67,564.11 is: 93,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278.96 : 167,365.07 = 67,564.11 : x
  2. Step 2: Convert to fraction form
    121,278.96/167,365.07 = 67,564.11/x
  3. Step 3: Cross multiply
    121,278.96x = 167,365.07 × 67,564.11
  4. Step 4: Simplify right side
    121,278.96x = 11,307,871,661.82
  5. Step 5: Solve for x
    x = 11,307,871,661.82/121,278.96
  6. Step 6: Final answer
    x = 93,238.53

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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.