Home / 121,021.27-167,006.98-67,305.13

Finding the Fourth Proportional to 121,021.27, 167,006.98 and 67,305.13

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Solution

The fourth proportional to 121,021.27, 167,006.98 and 67,305.13 is: 92,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,021.27 : 167,006.98 = 67,305.13 : x
  2. Step 2: Convert to fraction form
    121,021.27/167,006.98 = 67,305.13/x
  3. Step 3: Cross multiply
    121,021.27x = 167,006.98 × 67,305.13
  4. Step 4: Simplify right side
    121,021.27x = 11,240,426,499.81
  5. Step 5: Solve for x
    x = 11,240,426,499.81/121,021.27
  6. Step 6: Final answer
    x = 92,879.76

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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.