Home / 121,071.57-167,161.05-75,767.85

Finding the Fourth Proportional to 121,071.57, 167,161.05 and 75,767.85

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Solution

The fourth proportional to 121,071.57, 167,161.05 and 75,767.85 is: 104,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,071.57 : 167,161.05 = 75,767.85 : x
  2. Step 2: Convert to fraction form
    121,071.57/167,161.05 = 75,767.85/x
  3. Step 3: Cross multiply
    121,071.57x = 167,161.05 × 75,767.85
  4. Step 4: Simplify right side
    121,071.57x = 12,665,433,362.24
  5. Step 5: Solve for x
    x = 12,665,433,362.24/121,071.57
  6. Step 6: Final answer
    x = 104,611.13

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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.