Home / 180,689.31-249,347.97-100,116.54

Finding the Fourth Proportional to 180,689.31, 249,347.97 and 100,116.54

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Solution

The fourth proportional to 180,689.31, 249,347.97 and 100,116.54 is: 138,159.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,689.31 : 249,347.97 = 100,116.54 : x
  2. Step 2: Convert to fraction form
    180,689.31/249,347.97 = 100,116.54/x
  3. Step 3: Cross multiply
    180,689.31x = 249,347.97 × 100,116.54
  4. Step 4: Simplify right side
    180,689.31x = 24,963,856,012.42
  5. Step 5: Solve for x
    x = 24,963,856,012.42/180,689.31
  6. Step 6: Final answer
    x = 138,159.01

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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.