Home / 180,857.81-249,571.61-100,282.35

Finding the Fourth Proportional to 180,857.81, 249,571.61 and 100,282.35

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Solution

The fourth proportional to 180,857.81, 249,571.61 and 100,282.35 is: 138,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,857.81 : 249,571.61 = 100,282.35 : x
  2. Step 2: Convert to fraction form
    180,857.81/249,571.61 = 100,282.35/x
  3. Step 3: Cross multiply
    180,857.81x = 249,571.61 × 100,282.35
  4. Step 4: Simplify right side
    180,857.81x = 25,027,627,042.67
  5. Step 5: Solve for x
    x = 25,027,627,042.67/180,857.81
  6. Step 6: Final answer
    x = 138,382.90

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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.