Home / 121,156.45-167,194.11-67,441.39

Finding the Fourth Proportional to 121,156.45, 167,194.11 and 67,441.39

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Solution

The fourth proportional to 121,156.45, 167,194.11 and 67,441.39 is: 93,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,156.45 : 167,194.11 = 67,441.39 : x
  2. Step 2: Convert to fraction form
    121,156.45/167,194.11 = 67,441.39/x
  3. Step 3: Cross multiply
    121,156.45x = 167,194.11 × 67,441.39
  4. Step 4: Simplify right side
    121,156.45x = 11,275,803,178.21
  5. Step 5: Solve for x
    x = 11,275,803,178.21/121,156.45
  6. Step 6: Final answer
    x = 93,068.12

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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.