Home / 180,531.43-249,147.40-99,966.45

Finding the Fourth Proportional to 180,531.43, 249,147.40 and 99,966.45

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Solution

The fourth proportional to 180,531.43, 249,147.40 and 99,966.45 is: 137,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,531.43 : 249,147.40 = 99,966.45 : x
  2. Step 2: Convert to fraction form
    180,531.43/249,147.40 = 99,966.45/x
  3. Step 3: Cross multiply
    180,531.43x = 249,147.40 × 99,966.45
  4. Step 4: Simplify right side
    180,531.43x = 24,906,381,104.73
  5. Step 5: Solve for x
    x = 24,906,381,104.73/180,531.43
  6. Step 6: Final answer
    x = 137,961.47

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1.5x scale

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.