Home / 105,193.27-157,868.27-77,185.70

Finding the Fourth Proportional to 105,193.27, 157,868.27 and 77,185.70

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Solution

The fourth proportional to 105,193.27, 157,868.27 and 77,185.70 is: 115,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,193.27 : 157,868.27 = 77,185.70 : x
  2. Step 2: Convert to fraction form
    105,193.27/157,868.27 = 77,185.70/x
  3. Step 3: Cross multiply
    105,193.27x = 157,868.27 × 77,185.70
  4. Step 4: Simplify right side
    105,193.27x = 12,185,172,331.36
  5. Step 5: Solve for x
    x = 12,185,172,331.36/105,193.27
  6. Step 6: Final answer
    x = 115,836.05

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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.