Home / 98,826.87-136,287.73-64,864.81

Finding the Fourth Proportional to 98,826.87, 136,287.73 and 64,864.81

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Solution

The fourth proportional to 98,826.87, 136,287.73 and 64,864.81 is: 89,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,826.87 : 136,287.73 = 64,864.81 : x
  2. Step 2: Convert to fraction form
    98,826.87/136,287.73 = 64,864.81/x
  3. Step 3: Cross multiply
    98,826.87x = 136,287.73 × 64,864.81
  4. Step 4: Simplify right side
    98,826.87x = 8,840,277,711.78
  5. Step 5: Solve for x
    x = 8,840,277,711.78/98,826.87
  6. Step 6: Final answer
    x = 89,452.17

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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.