Home / 103,387.32-154,955.79-47,150.37

Finding the Fourth Proportional to 103,387.32, 154,955.79 and 47,150.37

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Solution

The fourth proportional to 103,387.32, 154,955.79 and 47,150.37 is: 70,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,387.32 : 154,955.79 = 47,150.37 : x
  2. Step 2: Convert to fraction form
    103,387.32/154,955.79 = 47,150.37/x
  3. Step 3: Cross multiply
    103,387.32x = 154,955.79 × 47,150.37
  4. Step 4: Simplify right side
    103,387.32x = 7,306,222,832.14
  5. Step 5: Solve for x
    x = 7,306,222,832.14/103,387.32
  6. Step 6: Final answer
    x = 70,668.46

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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.