Home / 189,787.04-261,736.45-157,470.47

Finding the Fourth Proportional to 189,787.04, 261,736.45 and 157,470.47

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Solution

The fourth proportional to 189,787.04, 261,736.45 and 157,470.47 is: 217,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,787.04 : 261,736.45 = 157,470.47 : x
  2. Step 2: Convert to fraction form
    189,787.04/261,736.45 = 157,470.47/x
  3. Step 3: Cross multiply
    189,787.04x = 261,736.45 × 157,470.47
  4. Step 4: Simplify right side
    189,787.04x = 41,215,761,797.63
  5. Step 5: Solve for x
    x = 41,215,761,797.63/189,787.04
  6. Step 6: Final answer
    x = 217,168.47

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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.