Home / 83,152.20-124,574.70-77,622.60

Finding the Fourth Proportional to 83,152.20, 124,574.70 and 77,622.60

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Solution

The fourth proportional to 83,152.20, 124,574.70 and 77,622.60 is: 116,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,152.20 : 124,574.70 = 77,622.60 : x
  2. Step 2: Convert to fraction form
    83,152.20/124,574.70 = 77,622.60/x
  3. Step 3: Cross multiply
    83,152.20x = 124,574.70 × 77,622.60
  4. Step 4: Simplify right side
    83,152.20x = 9,669,812,108.22
  5. Step 5: Solve for x
    x = 9,669,812,108.22/83,152.20
  6. Step 6: Final answer
    x = 116,290.51

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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.