Home / 180,897.30-249,621.75-100,324.58

Finding the Fourth Proportional to 180,897.30, 249,621.75 and 100,324.58

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Solution

The fourth proportional to 180,897.30, 249,621.75 and 100,324.58 is: 138,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,897.30 : 249,621.75 = 100,324.58 : x
  2. Step 2: Convert to fraction form
    180,897.30/249,621.75 = 100,324.58/x
  3. Step 3: Cross multiply
    180,897.30x = 249,621.75 × 100,324.58
  4. Step 4: Simplify right side
    180,897.30x = 25,043,195,979.51
  5. Step 5: Solve for x
    x = 25,043,195,979.51/180,897.30
  6. Step 6: Final answer
    x = 138,438.75

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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.