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Finding the Fourth Proportional to 121,019.71, 167,004.83 and 67,303.57

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Solution

The fourth proportional to 121,019.71, 167,004.83 and 67,303.57 is: 92,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,019.71 : 167,004.83 = 67,303.57 : x
  2. Step 2: Convert to fraction form
    121,019.71/167,004.83 = 67,303.57/x
  3. Step 3: Cross multiply
    121,019.71x = 167,004.83 × 67,303.57
  4. Step 4: Simplify right side
    121,019.71x = 11,240,021,091.75
  5. Step 5: Solve for x
    x = 11,240,021,091.75/121,019.71
  6. Step 6: Final answer
    x = 92,877.61

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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.