Home / 121,328.96-167,434.11-67,612.77

Finding the Fourth Proportional to 121,328.96, 167,434.11 and 67,612.77

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Solution

The fourth proportional to 121,328.96, 167,434.11 and 67,612.77 is: 93,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,328.96 : 167,434.11 = 67,612.77 : x
  2. Step 2: Convert to fraction form
    121,328.96/167,434.11 = 67,612.77/x
  3. Step 3: Cross multiply
    121,328.96x = 167,434.11 × 67,612.77
  4. Step 4: Simplify right side
    121,328.96x = 11,320,683,969.58
  5. Step 5: Solve for x
    x = 11,320,683,969.58/121,328.96
  6. Step 6: Final answer
    x = 93,305.71

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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.