Home / 189,878.13-262,023.26-103,834.80

Finding the Fourth Proportional to 189,878.13, 262,023.26 and 103,834.80

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Solution

The fourth proportional to 189,878.13, 262,023.26 and 103,834.80 is: 143,287.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,878.13 : 262,023.26 = 103,834.80 : x
  2. Step 2: Convert to fraction form
    189,878.13/262,023.26 = 103,834.80/x
  3. Step 3: Cross multiply
    189,878.13x = 262,023.26 × 103,834.80
  4. Step 4: Simplify right side
    189,878.13x = 27,207,132,278.27
  5. Step 5: Solve for x
    x = 27,207,132,278.27/189,878.13
  6. Step 6: Final answer
    x = 143,287.34

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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.