Home / 121,284.34-167,441.85-81,066.22

Finding the Fourth Proportional to 121,284.34, 167,441.85 and 81,066.22

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Solution

The fourth proportional to 121,284.34, 167,441.85 and 81,066.22 is: 111,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.34 : 167,441.85 = 81,066.22 : x
  2. Step 2: Convert to fraction form
    121,284.34/167,441.85 = 81,066.22/x
  3. Step 3: Cross multiply
    121,284.34x = 167,441.85 × 81,066.22
  4. Step 4: Simplify right side
    121,284.34x = 13,573,877,849.31
  5. Step 5: Solve for x
    x = 13,573,877,849.31/121,284.34
  6. Step 6: Final answer
    x = 111,917.81

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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.