Home / 180,861.03-249,591.21-100,291.95

Finding the Fourth Proportional to 180,861.03, 249,591.21 and 100,291.95

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Solution

The fourth proportional to 180,861.03, 249,591.21 and 100,291.95 is: 138,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,861.03 : 249,591.21 = 100,291.95 : x
  2. Step 2: Convert to fraction form
    180,861.03/249,591.21 = 100,291.95/x
  3. Step 3: Cross multiply
    180,861.03x = 249,591.21 × 100,291.95
  4. Step 4: Simplify right side
    180,861.03x = 25,031,989,153.76
  5. Step 5: Solve for x
    x = 25,031,989,153.76/180,861.03
  6. Step 6: Final answer
    x = 138,404.55

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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.