Home / 159,205.10-219,701.46-87,585.20

Finding the Fourth Proportional to 159,205.10, 219,701.46 and 87,585.20

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Solution

The fourth proportional to 159,205.10, 219,701.46 and 87,585.20 is: 120,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,205.10 : 219,701.46 = 87,585.20 : x
  2. Step 2: Convert to fraction form
    159,205.10/219,701.46 = 87,585.20/x
  3. Step 3: Cross multiply
    159,205.10x = 219,701.46 × 87,585.20
  4. Step 4: Simplify right side
    159,205.10x = 19,242,596,314.39
  5. Step 5: Solve for x
    x = 19,242,596,314.39/159,205.10
  6. Step 6: Final answer
    x = 120,866.71

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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.