Home / 124,703.10-187,054.65-82,712.70

Finding the Fourth Proportional to 124,703.10, 187,054.65 and 82,712.70

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Solution

The fourth proportional to 124,703.10, 187,054.65 and 82,712.70 is: 124,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,703.10 : 187,054.65 = 82,712.70 : x
  2. Step 2: Convert to fraction form
    124,703.10/187,054.65 = 82,712.70/x
  3. Step 3: Cross multiply
    124,703.10x = 187,054.65 × 82,712.70
  4. Step 4: Simplify right side
    124,703.10x = 15,471,795,149.06
  5. Step 5: Solve for x
    x = 15,471,795,149.06/124,703.10
  6. Step 6: Final answer
    x = 124,069.05

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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.