Home / 180,966.78-249,734.46-100,394.32

Finding the Fourth Proportional to 180,966.78, 249,734.46 and 100,394.32

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Solution

The fourth proportional to 180,966.78, 249,734.46 and 100,394.32 is: 138,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,966.78 : 249,734.46 = 100,394.32 : x
  2. Step 2: Convert to fraction form
    180,966.78/249,734.46 = 100,394.32/x
  3. Step 3: Cross multiply
    180,966.78x = 249,734.46 × 100,394.32
  4. Step 4: Simplify right side
    180,966.78x = 25,071,921,292.27
  5. Step 5: Solve for x
    x = 25,071,921,292.27/180,966.78
  6. Step 6: Final answer
    x = 138,544.33

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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.