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Finding the Fourth Proportional to 158,951.34, 219,341.79 and 87,334.38

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Solution

The fourth proportional to 158,951.34, 219,341.79 and 87,334.38 is: 120,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,951.34 : 219,341.79 = 87,334.38 : x
  2. Step 2: Convert to fraction form
    158,951.34/219,341.79 = 87,334.38/x
  3. Step 3: Cross multiply
    158,951.34x = 219,341.79 × 87,334.38
  4. Step 4: Simplify right side
    158,951.34x = 19,156,079,237.74
  5. Step 5: Solve for x
    x = 19,156,079,237.74/158,951.34
  6. Step 6: Final answer
    x = 120,515.37

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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.