Home / 115,688.80-173,576.40-45,616.96

Finding the Fourth Proportional to 115,688.80, 173,576.40 and 45,616.96

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Solution

The fourth proportional to 115,688.80, 173,576.40 and 45,616.96 is: 68,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,688.80 : 173,576.40 = 45,616.96 : x
  2. Step 2: Convert to fraction form
    115,688.80/173,576.40 = 45,616.96/x
  3. Step 3: Cross multiply
    115,688.80x = 173,576.40 × 45,616.96
  4. Step 4: Simplify right side
    115,688.80x = 7,918,027,695.74
  5. Step 5: Solve for x
    x = 7,918,027,695.74/115,688.80
  6. Step 6: Final answer
    x = 68,442.47

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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.