Home / 121,418.20-167,484.72-94,518.10

Finding the Fourth Proportional to 121,418.20, 167,484.72 and 94,518.10

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Solution

The fourth proportional to 121,418.20, 167,484.72 and 94,518.10 is: 130,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418.20 : 167,484.72 = 94,518.10 : x
  2. Step 2: Convert to fraction form
    121,418.20/167,484.72 = 94,518.10/x
  3. Step 3: Cross multiply
    121,418.20x = 167,484.72 × 94,518.10
  4. Step 4: Simplify right side
    121,418.20x = 15,830,337,513.43
  5. Step 5: Solve for x
    x = 15,830,337,513.43/121,418.20
  6. Step 6: Final answer
    x = 130,378.62

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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.