Home / 121,671.51-167,895.75-67,949.07

Finding the Fourth Proportional to 121,671.51, 167,895.75 and 67,949.07

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Solution

The fourth proportional to 121,671.51, 167,895.75 and 67,949.07 is: 93,763.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,671.51 : 167,895.75 = 67,949.07 : x
  2. Step 2: Convert to fraction form
    121,671.51/167,895.75 = 67,949.07/x
  3. Step 3: Cross multiply
    121,671.51x = 167,895.75 × 67,949.07
  4. Step 4: Simplify right side
    121,671.51x = 11,408,360,069.45
  5. Step 5: Solve for x
    x = 11,408,360,069.45/121,671.51
  6. Step 6: Final answer
    x = 93,763.61

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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.