Home / 154,023.32-212,553.52-88,621.90

Finding the Fourth Proportional to 154,023.32, 212,553.52 and 88,621.90

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Solution

The fourth proportional to 154,023.32, 212,553.52 and 88,621.90 is: 122,298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,023.32 : 212,553.52 = 88,621.90 : x
  2. Step 2: Convert to fraction form
    154,023.32/212,553.52 = 88,621.90/x
  3. Step 3: Cross multiply
    154,023.32x = 212,553.52 × 88,621.90
  4. Step 4: Simplify right side
    154,023.32x = 18,836,896,041.15
  5. Step 5: Solve for x
    x = 18,836,896,041.15/154,023.32
  6. Step 6: Final answer
    x = 122,298.99

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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.