Home / 107,835.20-161,752.80-37,721.60

Finding the Fourth Proportional to 107,835.20, 161,752.80 and 37,721.60

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Solution

The fourth proportional to 107,835.20, 161,752.80 and 37,721.60 is: 56,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,835.20 : 161,752.80 = 37,721.60 : x
  2. Step 2: Convert to fraction form
    107,835.20/161,752.80 = 37,721.60/x
  3. Step 3: Cross multiply
    107,835.20x = 161,752.80 × 37,721.60
  4. Step 4: Simplify right side
    107,835.20x = 6,101,574,420.48
  5. Step 5: Solve for x
    x = 6,101,574,420.48/107,835.20
  6. Step 6: Final answer
    x = 56,582.40

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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.