Home / 180,783.80-249,455.42-100,211.30

Finding the Fourth Proportional to 180,783.80, 249,455.42 and 100,211.30

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Solution

The fourth proportional to 180,783.80, 249,455.42 and 100,211.30 is: 138,277.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,783.80 : 249,455.42 = 100,211.30 : x
  2. Step 2: Convert to fraction form
    180,783.80/249,455.42 = 100,211.30/x
  3. Step 3: Cross multiply
    180,783.80x = 249,455.42 × 100,211.30
  4. Step 4: Simplify right side
    180,783.80x = 24,998,251,930.25
  5. Step 5: Solve for x
    x = 24,998,251,930.25/180,783.80
  6. Step 6: Final answer
    x = 138,277.06

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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.