Home / 159,025.49-219,452.36-87,405.50

Finding the Fourth Proportional to 159,025.49, 219,452.36 and 87,405.50

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Solution

The fourth proportional to 159,025.49, 219,452.36 and 87,405.50 is: 120,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,025.49 : 219,452.36 = 87,405.50 : x
  2. Step 2: Convert to fraction form
    159,025.49/219,452.36 = 87,405.50/x
  3. Step 3: Cross multiply
    159,025.49x = 219,452.36 × 87,405.50
  4. Step 4: Simplify right side
    159,025.49x = 19,181,342,373.23
  5. Step 5: Solve for x
    x = 19,181,342,373.23/159,025.49
  6. Step 6: Final answer
    x = 120,618.03

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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.