Home / 102,519.48-153,780.30-43,347.36

Finding the Fourth Proportional to 102,519.48, 153,780.30 and 43,347.36

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Solution

The fourth proportional to 102,519.48, 153,780.30 and 43,347.36 is: 65,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,519.48 : 153,780.30 = 43,347.36 : x
  2. Step 2: Convert to fraction form
    102,519.48/153,780.30 = 43,347.36/x
  3. Step 3: Cross multiply
    102,519.48x = 153,780.30 × 43,347.36
  4. Step 4: Simplify right side
    102,519.48x = 6,665,970,025.01
  5. Step 5: Solve for x
    x = 6,665,970,025.01/102,519.48
  6. Step 6: Final answer
    x = 65,021.50

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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.