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Finding the Fourth Proportional to 158,858.86, 219,103.75 and 107,910.87

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Solution

The fourth proportional to 158,858.86, 219,103.75 and 107,910.87 is: 148,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,858.86 : 219,103.75 = 107,910.87 : x
  2. Step 2: Convert to fraction form
    158,858.86/219,103.75 = 107,910.87/x
  3. Step 3: Cross multiply
    158,858.86x = 219,103.75 × 107,910.87
  4. Step 4: Simplify right side
    158,858.86x = 23,643,676,282.76
  5. Step 5: Solve for x
    x = 23,643,676,282.76/158,858.86
  6. Step 6: Final answer
    x = 148,834.48

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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.