Home / 158,727.33-219,043.10-87,108.55

Finding the Fourth Proportional to 158,727.33, 219,043.10 and 87,108.55

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Solution

The fourth proportional to 158,727.33, 219,043.10 and 87,108.55 is: 120,209.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,727.33 : 219,043.10 = 87,108.55 : x
  2. Step 2: Convert to fraction form
    158,727.33/219,043.10 = 87,108.55/x
  3. Step 3: Cross multiply
    158,727.33x = 219,043.10 × 87,108.55
  4. Step 4: Simplify right side
    158,727.33x = 19,080,526,498.67
  5. Step 5: Solve for x
    x = 19,080,526,498.67/158,727.33
  6. Step 6: Final answer
    x = 120,209.46

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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.