Home / 105,982.72-146,267.40-63,545.20

Finding the Fourth Proportional to 105,982.72, 146,267.40 and 63,545.20

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Solution

The fourth proportional to 105,982.72, 146,267.40 and 63,545.20 is: 87,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,982.72 : 146,267.40 = 63,545.20 : x
  2. Step 2: Convert to fraction form
    105,982.72/146,267.40 = 63,545.20/x
  3. Step 3: Cross multiply
    105,982.72x = 146,267.40 × 63,545.20
  4. Step 4: Simplify right side
    105,982.72x = 9,294,591,186.48
  5. Step 5: Solve for x
    x = 9,294,591,186.48/105,982.72
  6. Step 6: Final answer
    x = 87,699.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.