Home / 180,742.18-249,424.20-100,181.81

Finding the Fourth Proportional to 180,742.18, 249,424.20 and 100,181.81

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Solution

The fourth proportional to 180,742.18, 249,424.20 and 100,181.81 is: 138,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,742.18 : 249,424.20 = 100,181.81 : x
  2. Step 2: Convert to fraction form
    180,742.18/249,424.20 = 100,181.81/x
  3. Step 3: Cross multiply
    180,742.18x = 249,424.20 × 100,181.81
  4. Step 4: Simplify right side
    180,742.18x = 24,987,766,566.68
  5. Step 5: Solve for x
    x = 24,987,766,566.68/180,742.18
  6. Step 6: Final answer
    x = 138,250.89

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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.