Home / 159,053.12-219,493.56-87,433.59

Finding the Fourth Proportional to 159,053.12, 219,493.56 and 87,433.59

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Solution

The fourth proportional to 159,053.12, 219,493.56 and 87,433.59 is: 120,658.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,053.12 : 219,493.56 = 87,433.59 : x
  2. Step 2: Convert to fraction form
    159,053.12/219,493.56 = 87,433.59/x
  3. Step 3: Cross multiply
    159,053.12x = 219,493.56 × 87,433.59
  4. Step 4: Simplify right side
    159,053.12x = 19,191,109,932.68
  5. Step 5: Solve for x
    x = 19,191,109,932.68/159,053.12
  6. Step 6: Final answer
    x = 120,658.50

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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.