Home / 180,677.45-249,331.65-100,103.36

Finding the Fourth Proportional to 180,677.45, 249,331.65 and 100,103.36

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Solution

The fourth proportional to 180,677.45, 249,331.65 and 100,103.36 is: 138,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,677.45 : 249,331.65 = 100,103.36 : x
  2. Step 2: Convert to fraction form
    180,677.45/249,331.65 = 100,103.36/x
  3. Step 3: Cross multiply
    180,677.45x = 249,331.65 × 100,103.36
  4. Step 4: Simplify right side
    180,677.45x = 24,958,935,919.34
  5. Step 5: Solve for x
    x = 24,958,935,919.34/180,677.45
  6. Step 6: Final answer
    x = 138,140.85

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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.