Home / 180,747.15-249,431.09-100,179.87

Finding the Fourth Proportional to 180,747.15, 249,431.09 and 100,179.87

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Solution

The fourth proportional to 180,747.15, 249,431.09 and 100,179.87 is: 138,248.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,747.15 : 249,431.09 = 100,179.87 : x
  2. Step 2: Convert to fraction form
    180,747.15/249,431.09 = 100,179.87/x
  3. Step 3: Cross multiply
    180,747.15x = 249,431.09 × 100,179.87
  4. Step 4: Simplify right side
    180,747.15x = 24,987,973,669.26
  5. Step 5: Solve for x
    x = 24,987,973,669.26/180,747.15
  6. Step 6: Final answer
    x = 138,248.23

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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.