Home / 154,946.32-213,832.92-121,354

Finding the Fourth Proportional to 154,946.32, 213,832.92 and 121,354

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Solution

The fourth proportional to 154,946.32, 213,832.92 and 121,354 is: 167,474.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,946.32 : 213,832.92 = 121,354 : x
  2. Step 2: Convert to fraction form
    154,946.32/213,832.92 = 121,354/x
  3. Step 3: Cross multiply
    154,946.32x = 213,832.92 × 121,354
  4. Step 4: Simplify right side
    154,946.32x = 25,949,480,173.68
  5. Step 5: Solve for x
    x = 25,949,480,173.68/154,946.32
  6. Step 6: Final answer
    x = 167,474.00

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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.