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Finding the Fourth Proportional to 159,046.07, 219,472.88 and 87,422.63

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Solution

The fourth proportional to 159,046.07, 219,472.88 and 87,422.63 is: 120,637.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,046.07 : 219,472.88 = 87,422.63 : x
  2. Step 2: Convert to fraction form
    159,046.07/219,472.88 = 87,422.63/x
  3. Step 3: Cross multiply
    159,046.07x = 219,472.88 × 87,422.63
  4. Step 4: Simplify right side
    159,046.07x = 19,186,894,848.80
  5. Step 5: Solve for x
    x = 19,186,894,848.80/159,046.07
  6. Step 6: Final answer
    x = 120,637.34

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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.