Home / 180,930.81-249,685.43-100,352.73

Finding the Fourth Proportional to 180,930.81, 249,685.43 and 100,352.73

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Solution

The fourth proportional to 180,930.81, 249,685.43 and 100,352.73 is: 138,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,930.81 : 249,685.43 = 100,352.73 : x
  2. Step 2: Convert to fraction form
    180,930.81/249,685.43 = 100,352.73/x
  3. Step 3: Cross multiply
    180,930.81x = 249,685.43 × 100,352.73
  4. Step 4: Simplify right side
    180,930.81x = 25,056,614,039.96
  5. Step 5: Solve for x
    x = 25,056,614,039.96/180,930.81
  6. Step 6: Final answer
    x = 138,487.27

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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.