Home / 159,011.09-219,440.57-87,393.65

Finding the Fourth Proportional to 159,011.09, 219,440.57 and 87,393.65

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Solution

The fourth proportional to 159,011.09, 219,440.57 and 87,393.65 is: 120,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,011.09 : 219,440.57 = 87,393.65 : x
  2. Step 2: Convert to fraction form
    159,011.09/219,440.57 = 87,393.65/x
  3. Step 3: Cross multiply
    159,011.09x = 219,440.57 × 87,393.65
  4. Step 4: Simplify right side
    159,011.09x = 19,177,712,370.38
  5. Step 5: Solve for x
    x = 19,177,712,370.38/159,011.09
  6. Step 6: Final answer
    x = 120,606.13

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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.