Home / 156,521.88-215,987.04-88,535.34

Finding the Fourth Proportional to 156,521.88, 215,987.04 and 88,535.34

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Solution

The fourth proportional to 156,521.88, 215,987.04 and 88,535.34 is: 122,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,521.88 : 215,987.04 = 88,535.34 : x
  2. Step 2: Convert to fraction form
    156,521.88/215,987.04 = 88,535.34/x
  3. Step 3: Cross multiply
    156,521.88x = 215,987.04 × 88,535.34
  4. Step 4: Simplify right side
    156,521.88x = 19,122,486,021.99
  5. Step 5: Solve for x
    x = 19,122,486,021.99/156,521.88
  6. Step 6: Final answer
    x = 122,171.33

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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.