Home / 99,768.92-137,669.83-57,341.12

Finding the Fourth Proportional to 99,768.92, 137,669.83 and 57,341.12

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Solution

The fourth proportional to 99,768.92, 137,669.83 and 57,341.12 is: 79,124.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,768.92 : 137,669.83 = 57,341.12 : x
  2. Step 2: Convert to fraction form
    99,768.92/137,669.83 = 57,341.12/x
  3. Step 3: Cross multiply
    99,768.92x = 137,669.83 × 57,341.12
  4. Step 4: Simplify right side
    99,768.92x = 7,894,141,410.71
  5. Step 5: Solve for x
    x = 7,894,141,410.71/99,768.92
  6. Step 6: Final answer
    x = 79,124.26

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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.