Home / 159,007.23-219,435.75-87,392.70

Finding the Fourth Proportional to 159,007.23, 219,435.75 and 87,392.70

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Solution

The fourth proportional to 159,007.23, 219,435.75 and 87,392.70 is: 120,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,007.23 : 219,435.75 = 87,392.70 : x
  2. Step 2: Convert to fraction form
    159,007.23/219,435.75 = 87,392.70/x
  3. Step 3: Cross multiply
    159,007.23x = 219,435.75 × 87,392.70
  4. Step 4: Simplify right side
    159,007.23x = 19,177,082,669.03
  5. Step 5: Solve for x
    x = 19,177,082,669.03/159,007.23
  6. Step 6: Final answer
    x = 120,605.10

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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.