Home / 155,539.66-214,642.34-87,556.42

Finding the Fourth Proportional to 155,539.66, 214,642.34 and 87,556.42

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Solution

The fourth proportional to 155,539.66, 214,642.34 and 87,556.42 is: 120,826.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,539.66 : 214,642.34 = 87,556.42 : x
  2. Step 2: Convert to fraction form
    155,539.66/214,642.34 = 87,556.42/x
  3. Step 3: Cross multiply
    155,539.66x = 214,642.34 × 87,556.42
  4. Step 4: Simplify right side
    155,539.66x = 18,793,314,553.11
  5. Step 5: Solve for x
    x = 18,793,314,553.11/155,539.66
  6. Step 6: Final answer
    x = 120,826.51

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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.