Home / 121,165.07-167,204.05-67,448.90

Finding the Fourth Proportional to 121,165.07, 167,204.05 and 67,448.90

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Solution

The fourth proportional to 121,165.07, 167,204.05 and 67,448.90 is: 93,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,165.07 : 167,204.05 = 67,448.90 : x
  2. Step 2: Convert to fraction form
    121,165.07/167,204.05 = 67,448.90/x
  3. Step 3: Cross multiply
    121,165.07x = 167,204.05 × 67,448.90
  4. Step 4: Simplify right side
    121,165.07x = 11,277,729,497.43
  5. Step 5: Solve for x
    x = 11,277,729,497.43/121,165.07
  6. Step 6: Final answer
    x = 93,077.40

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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.