Home / 180,965.43-249,712.03-100,372.76

Finding the Fourth Proportional to 180,965.43, 249,712.03 and 100,372.76

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Solution

The fourth proportional to 180,965.43, 249,712.03 and 100,372.76 is: 138,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,965.43 : 249,712.03 = 100,372.76 : x
  2. Step 2: Convert to fraction form
    180,965.43/249,712.03 = 100,372.76/x
  3. Step 3: Cross multiply
    180,965.43x = 249,712.03 × 100,372.76
  4. Step 4: Simplify right side
    180,965.43x = 25,064,285,656.30
  5. Step 5: Solve for x
    x = 25,064,285,656.30/180,965.43
  6. Step 6: Final answer
    x = 138,503.17

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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.