Home / 123,669.15-185,503.73-116,780.10

Finding the Fourth Proportional to 123,669.15, 185,503.73 and 116,780.10

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Solution

The fourth proportional to 123,669.15, 185,503.73 and 116,780.10 is: 175,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,669.15 : 185,503.73 = 116,780.10 : x
  2. Step 2: Convert to fraction form
    123,669.15/185,503.73 = 116,780.10/x
  3. Step 3: Cross multiply
    123,669.15x = 185,503.73 × 116,780.10
  4. Step 4: Simplify right side
    123,669.15x = 21,663,143,555.87
  5. Step 5: Solve for x
    x = 21,663,143,555.87/123,669.15
  6. Step 6: Final answer
    x = 175,170.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.