Home / 180,721.32-249,400.88-100,141.31

Finding the Fourth Proportional to 180,721.32, 249,400.88 and 100,141.31

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Solution

The fourth proportional to 180,721.32, 249,400.88 and 100,141.31 is: 138,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,721.32 : 249,400.88 = 100,141.31 : x
  2. Step 2: Convert to fraction form
    180,721.32/249,400.88 = 100,141.31/x
  3. Step 3: Cross multiply
    180,721.32x = 249,400.88 × 100,141.31
  4. Step 4: Simplify right side
    180,721.32x = 24,975,329,090.64
  5. Step 5: Solve for x
    x = 24,975,329,090.64/180,721.32
  6. Step 6: Final answer
    x = 138,198.02

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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.