Home / 130,465.22-180,404.42-103,561.07

Finding the Fourth Proportional to 130,465.22, 180,404.42 and 103,561.07

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Solution

The fourth proportional to 130,465.22, 180,404.42 and 103,561.07 is: 143,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,465.22 : 180,404.42 = 103,561.07 : x
  2. Step 2: Convert to fraction form
    130,465.22/180,404.42 = 103,561.07/x
  3. Step 3: Cross multiply
    130,465.22x = 180,404.42 × 103,561.07
  4. Step 4: Simplify right side
    130,465.22x = 18,682,873,348.10
  5. Step 5: Solve for x
    x = 18,682,873,348.10/130,465.22
  6. Step 6: Final answer
    x = 143,201.95

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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.