Home / 121,112.73-167,160.11-70,827.93

Finding the Fourth Proportional to 121,112.73, 167,160.11 and 70,827.93

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Solution

The fourth proportional to 121,112.73, 167,160.11 and 70,827.93 is: 97,756.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,112.73 : 167,160.11 = 70,827.93 : x
  2. Step 2: Convert to fraction form
    121,112.73/167,160.11 = 70,827.93/x
  3. Step 3: Cross multiply
    121,112.73x = 167,160.11 × 70,827.93
  4. Step 4: Simplify right side
    121,112.73x = 11,839,604,215.73
  5. Step 5: Solve for x
    x = 11,839,604,215.73/121,112.73
  6. Step 6: Final answer
    x = 97,756.89

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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.