Home / 180,881.15-249,616.55-100,316.12

Finding the Fourth Proportional to 180,881.15, 249,616.55 and 100,316.12

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Solution

The fourth proportional to 180,881.15, 249,616.55 and 100,316.12 is: 138,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,881.15 : 249,616.55 = 100,316.12 : x
  2. Step 2: Convert to fraction form
    180,881.15/249,616.55 = 100,316.12/x
  3. Step 3: Cross multiply
    180,881.15x = 249,616.55 × 100,316.12
  4. Step 4: Simplify right side
    180,881.15x = 25,040,562,786.49
  5. Step 5: Solve for x
    x = 25,040,562,786.49/180,881.15
  6. Step 6: Final answer
    x = 138,436.56

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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.