Home / 102,583.45-153,928.50-77,616.15

Finding the Fourth Proportional to 102,583.45, 153,928.50 and 77,616.15

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Solution

The fourth proportional to 102,583.45, 153,928.50 and 77,616.15 is: 116,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,583.45 : 153,928.50 = 77,616.15 : x
  2. Step 2: Convert to fraction form
    102,583.45/153,928.50 = 77,616.15/x
  3. Step 3: Cross multiply
    102,583.45x = 153,928.50 × 77,616.15
  4. Step 4: Simplify right side
    102,583.45x = 11,947,337,545.28
  5. Step 5: Solve for x
    x = 11,947,337,545.28/102,583.45
  6. Step 6: Final answer
    x = 116,464.57

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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.