Home / 121,089.04-167,113.80-67,373.20

Finding the Fourth Proportional to 121,089.04, 167,113.80 and 67,373.20

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Solution

The fourth proportional to 121,089.04, 167,113.80 and 67,373.20 is: 92,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,089.04 : 167,113.80 = 67,373.20 : x
  2. Step 2: Convert to fraction form
    121,089.04/167,113.80 = 67,373.20/x
  3. Step 3: Cross multiply
    121,089.04x = 167,113.80 × 67,373.20
  4. Step 4: Simplify right side
    121,089.04x = 11,258,991,470.16
  5. Step 5: Solve for x
    x = 11,258,991,470.16/121,089.04
  6. Step 6: Final answer
    x = 92,981.09

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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.