Home / 146,722.20-220,169.70-53,237.40

Finding the Fourth Proportional to 146,722.20, 220,169.70 and 53,237.40

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Solution

The fourth proportional to 146,722.20, 220,169.70 and 53,237.40 is: 79,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,722.20 : 220,169.70 = 53,237.40 : x
  2. Step 2: Convert to fraction form
    146,722.20/220,169.70 = 53,237.40/x
  3. Step 3: Cross multiply
    146,722.20x = 220,169.70 × 53,237.40
  4. Step 4: Simplify right side
    146,722.20x = 11,721,262,386.78
  5. Step 5: Solve for x
    x = 11,721,262,386.78/146,722.20
  6. Step 6: Final answer
    x = 79,887.45

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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.