Home / 154,216.32-212,823.68-87,152.64

Finding the Fourth Proportional to 154,216.32, 212,823.68 and 87,152.64

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Solution

The fourth proportional to 154,216.32, 212,823.68 and 87,152.64 is: 120,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,216.32 : 212,823.68 = 87,152.64 : x
  2. Step 2: Convert to fraction form
    154,216.32/212,823.68 = 87,152.64/x
  3. Step 3: Cross multiply
    154,216.32x = 212,823.68 × 87,152.64
  4. Step 4: Simplify right side
    154,216.32x = 18,548,145,566.52
  5. Step 5: Solve for x
    x = 18,548,145,566.52/154,216.32
  6. Step 6: Final answer
    x = 120,273.56

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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.