Home / 124,511.34-186,839.92-45,631.12

Finding the Fourth Proportional to 124,511.34, 186,839.92 and 45,631.12

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Solution

The fourth proportional to 124,511.34, 186,839.92 and 45,631.12 is: 68,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,511.34 : 186,839.92 = 45,631.12 : x
  2. Step 2: Convert to fraction form
    124,511.34/186,839.92 = 45,631.12/x
  3. Step 3: Cross multiply
    124,511.34x = 186,839.92 × 45,631.12
  4. Step 4: Simplify right side
    124,511.34x = 8,525,714,810.31
  5. Step 5: Solve for x
    x = 8,525,714,810.31/124,511.34
  6. Step 6: Final answer
    x = 68,473.40

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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.