Home / 121,329.03-167,426.70-66,878.81

Finding the Fourth Proportional to 121,329.03, 167,426.70 and 66,878.81

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Solution

The fourth proportional to 121,329.03, 167,426.70 and 66,878.81 is: 92,288.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,329.03 : 167,426.70 = 66,878.81 : x
  2. Step 2: Convert to fraction form
    121,329.03/167,426.70 = 66,878.81/x
  3. Step 3: Cross multiply
    121,329.03x = 167,426.70 × 66,878.81
  4. Step 4: Simplify right side
    121,329.03x = 11,197,299,363.14
  5. Step 5: Solve for x
    x = 11,197,299,363.14/121,329.03
  6. Step 6: Final answer
    x = 92,288.71

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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.