Home / 180,820.91-249,359.75-108,211.45

Finding the Fourth Proportional to 180,820.91, 249,359.75 and 108,211.45

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Solution

The fourth proportional to 180,820.91, 249,359.75 and 108,211.45 is: 149,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,820.91 : 249,359.75 = 108,211.45 : x
  2. Step 2: Convert to fraction form
    180,820.91/249,359.75 = 108,211.45/x
  3. Step 3: Cross multiply
    180,820.91x = 249,359.75 × 108,211.45
  4. Step 4: Simplify right side
    180,820.91x = 26,983,580,119.14
  5. Step 5: Solve for x
    x = 26,983,580,119.14/180,820.91
  6. Step 6: Final answer
    x = 149,228.21

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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.