Home / 121,946.56-168,301.68-74,197.04

Finding the Fourth Proportional to 121,946.56, 168,301.68 and 74,197.04

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Solution

The fourth proportional to 121,946.56, 168,301.68 and 74,197.04 is: 102,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,946.56 : 168,301.68 = 74,197.04 : x
  2. Step 2: Convert to fraction form
    121,946.56/168,301.68 = 74,197.04/x
  3. Step 3: Cross multiply
    121,946.56x = 168,301.68 × 74,197.04
  4. Step 4: Simplify right side
    121,946.56x = 12,487,486,483.03
  5. Step 5: Solve for x
    x = 12,487,486,483.03/121,946.56
  6. Step 6: Final answer
    x = 102,401.30

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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.