Home / 159,133.30-219,599.57-87,513.32

Finding the Fourth Proportional to 159,133.30, 219,599.57 and 87,513.32

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Solution

The fourth proportional to 159,133.30, 219,599.57 and 87,513.32 is: 120,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,133.30 : 219,599.57 = 87,513.32 : x
  2. Step 2: Convert to fraction form
    159,133.30/219,599.57 = 87,513.32/x
  3. Step 3: Cross multiply
    159,133.30x = 219,599.57 × 87,513.32
  4. Step 4: Simplify right side
    159,133.30x = 19,217,887,441.27
  5. Step 5: Solve for x
    x = 19,217,887,441.27/159,133.30
  6. Step 6: Final answer
    x = 120,765.97

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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.