Home / 180,768.48-249,475.44-100,221.28

Finding the Fourth Proportional to 180,768.48, 249,475.44 and 100,221.28

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Solution

The fourth proportional to 180,768.48, 249,475.44 and 100,221.28 is: 138,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,768.48 : 249,475.44 = 100,221.28 : x
  2. Step 2: Convert to fraction form
    180,768.48/249,475.44 = 100,221.28/x
  3. Step 3: Cross multiply
    180,768.48x = 249,475.44 × 100,221.28
  4. Step 4: Simplify right side
    180,768.48x = 25,002,747,925.36
  5. Step 5: Solve for x
    x = 25,002,747,925.36/180,768.48
  6. Step 6: Final answer
    x = 138,313.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.