Home / 180,895.30-249,629.19-100,330.32

Finding the Fourth Proportional to 180,895.30, 249,629.19 and 100,330.32

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Solution

The fourth proportional to 180,895.30, 249,629.19 and 100,330.32 is: 138,452.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,895.30 : 249,629.19 = 100,330.32 : x
  2. Step 2: Convert to fraction form
    180,895.30/249,629.19 = 100,330.32/x
  3. Step 3: Cross multiply
    180,895.30x = 249,629.19 × 100,330.32
  4. Step 4: Simplify right side
    180,895.30x = 25,045,376,936.19
  5. Step 5: Solve for x
    x = 25,045,376,936.19/180,895.30
  6. Step 6: Final answer
    x = 138,452.34

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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.