Home / 121,618.73-167,821.08-70,621.49

Finding the Fourth Proportional to 121,618.73, 167,821.08 and 70,621.49

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Solution

The fourth proportional to 121,618.73, 167,821.08 and 70,621.49 is: 97,450.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618.73 : 167,821.08 = 70,621.49 : x
  2. Step 2: Convert to fraction form
    121,618.73/167,821.08 = 70,621.49/x
  3. Step 3: Cross multiply
    121,618.73x = 167,821.08 × 70,621.49
  4. Step 4: Simplify right side
    121,618.73x = 11,851,774,723.01
  5. Step 5: Solve for x
    x = 11,851,774,723.01/121,618.73
  6. Step 6: Final answer
    x = 97,450.24

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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.