Home / 121,600.09-167,801.07-67,888.50

Finding the Fourth Proportional to 121,600.09, 167,801.07 and 67,888.50

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Solution

The fourth proportional to 121,600.09, 167,801.07 and 67,888.50 is: 93,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,600.09 : 167,801.07 = 67,888.50 : x
  2. Step 2: Convert to fraction form
    121,600.09/167,801.07 = 67,888.50/x
  3. Step 3: Cross multiply
    121,600.09x = 167,801.07 × 67,888.50
  4. Step 4: Simplify right side
    121,600.09x = 11,391,763,599.97
  5. Step 5: Solve for x
    x = 11,391,763,599.97/121,600.09
  6. Step 6: Final answer
    x = 93,682.20

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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.