Home / 121,305.51-167,406.75-67,590.56

Finding the Fourth Proportional to 121,305.51, 167,406.75 and 67,590.56

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Solution

The fourth proportional to 121,305.51, 167,406.75 and 67,590.56 is: 93,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,305.51 : 167,406.75 = 67,590.56 : x
  2. Step 2: Convert to fraction form
    121,305.51/167,406.75 = 67,590.56/x
  3. Step 3: Cross multiply
    121,305.51x = 167,406.75 × 67,590.56
  4. Step 4: Simplify right side
    121,305.51x = 11,315,116,398.80
  5. Step 5: Solve for x
    x = 11,315,116,398.80/121,305.51
  6. Step 6: Final answer
    x = 93,277.84

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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.