Home / 84,137.96-116,153.24-64,974.71

Finding the Fourth Proportional to 84,137.96, 116,153.24 and 64,974.71

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Solution

The fourth proportional to 84,137.96, 116,153.24 and 64,974.71 is: 89,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,137.96 : 116,153.24 = 64,974.71 : x
  2. Step 2: Convert to fraction form
    84,137.96/116,153.24 = 64,974.71/x
  3. Step 3: Cross multiply
    84,137.96x = 116,153.24 × 64,974.71
  4. Step 4: Simplify right side
    84,137.96x = 7,547,023,050.07
  5. Step 5: Solve for x
    x = 7,547,023,050.07/84,137.96
  6. Step 6: Final answer
    x = 89,698.19

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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.