Home / 222,120.40-306,518.26-125,354.76

Finding the Fourth Proportional to 222,120.40, 306,518.26 and 125,354.76

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Solution

The fourth proportional to 222,120.40, 306,518.26 and 125,354.76 is: 172,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,120.40 : 306,518.26 = 125,354.76 : x
  2. Step 2: Convert to fraction form
    222,120.40/306,518.26 = 125,354.76/x
  3. Step 3: Cross multiply
    222,120.40x = 306,518.26 × 125,354.76
  4. Step 4: Simplify right side
    222,120.40x = 38,423,522,917.92
  5. Step 5: Solve for x
    x = 38,423,522,917.92/222,120.40
  6. Step 6: Final answer
    x = 172,985.11

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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.