Home / 222,120.16-306,528.24-121,516

Finding the Fourth Proportional to 222,120.16, 306,528.24 and 121,516

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Solution

The fourth proportional to 222,120.16, 306,528.24 and 121,516 is: 167,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,120.16 : 306,528.24 = 121,516 : x
  2. Step 2: Convert to fraction form
    222,120.16/306,528.24 = 121,516/x
  3. Step 3: Cross multiply
    222,120.16x = 306,528.24 × 121,516
  4. Step 4: Simplify right side
    222,120.16x = 37,248,085,611.84
  5. Step 5: Solve for x
    x = 37,248,085,611.84/222,120.16
  6. Step 6: Final answer
    x = 167,693.40

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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.