Home / 103,347.36-154,967.10-36,777.78

Finding the Fourth Proportional to 103,347.36, 154,967.10 and 36,777.78

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Solution

The fourth proportional to 103,347.36, 154,967.10 and 36,777.78 is: 55,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,347.36 : 154,967.10 = 36,777.78 : x
  2. Step 2: Convert to fraction form
    103,347.36/154,967.10 = 36,777.78/x
  3. Step 3: Cross multiply
    103,347.36x = 154,967.10 × 36,777.78
  4. Step 4: Simplify right side
    103,347.36x = 5,699,345,911.04
  5. Step 5: Solve for x
    x = 5,699,345,911.04/103,347.36
  6. Step 6: Final answer
    x = 55,147.47

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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.