Home / 121,699.05-167,943.89-67,983.59

Finding the Fourth Proportional to 121,699.05, 167,943.89 and 67,983.59

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Solution

The fourth proportional to 121,699.05, 167,943.89 and 67,983.59 is: 93,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,699.05 : 167,943.89 = 67,983.59 : x
  2. Step 2: Convert to fraction form
    121,699.05/167,943.89 = 67,983.59/x
  3. Step 3: Cross multiply
    121,699.05x = 167,943.89 × 67,983.59
  4. Step 4: Simplify right side
    121,699.05x = 11,417,428,220.85
  5. Step 5: Solve for x
    x = 11,417,428,220.85/121,699.05
  6. Step 6: Final answer
    x = 93,816.91

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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.