Home / 180,720.78-249,401.13-109,086.81

Finding the Fourth Proportional to 180,720.78, 249,401.13 and 109,086.81

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Solution

The fourth proportional to 180,720.78, 249,401.13 and 109,086.81 is: 150,543.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,720.78 : 249,401.13 = 109,086.81 : x
  2. Step 2: Convert to fraction form
    180,720.78/249,401.13 = 109,086.81/x
  3. Step 3: Cross multiply
    180,720.78x = 249,401.13 × 109,086.81
  4. Step 4: Simplify right side
    180,720.78x = 27,206,373,682.10
  5. Step 5: Solve for x
    x = 27,206,373,682.10/180,720.78
  6. Step 6: Final answer
    x = 150,543.69

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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.