Home / 180,897.03-249,621.40-100,324.30

Finding the Fourth Proportional to 180,897.03, 249,621.40 and 100,324.30

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Solution

The fourth proportional to 180,897.03, 249,621.40 and 100,324.30 is: 138,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,897.03 : 249,621.40 = 100,324.30 : x
  2. Step 2: Convert to fraction form
    180,897.03/249,621.40 = 100,324.30/x
  3. Step 3: Cross multiply
    180,897.03x = 249,621.40 × 100,324.30
  4. Step 4: Simplify right side
    180,897.03x = 25,043,092,220.02
  5. Step 5: Solve for x
    x = 25,043,092,220.02/180,897.03
  6. Step 6: Final answer
    x = 138,438.38

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1.5x scale

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.