Home / 154,342.94-212,709.04-127,321.34

Finding the Fourth Proportional to 154,342.94, 212,709.04 and 127,321.34

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Solution

The fourth proportional to 154,342.94, 212,709.04 and 127,321.34 is: 175,468.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,342.94 : 212,709.04 = 127,321.34 : x
  2. Step 2: Convert to fraction form
    154,342.94/212,709.04 = 127,321.34/x
  3. Step 3: Cross multiply
    154,342.94x = 212,709.04 × 127,321.34
  4. Step 4: Simplify right side
    154,342.94x = 27,082,398,621.07
  5. Step 5: Solve for x
    x = 27,082,398,621.07/154,342.94
  6. Step 6: Final answer
    x = 175,468.99

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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.