Home / 189,740.69-261,847.58-103,704.47

Finding the Fourth Proportional to 189,740.69, 261,847.58 and 103,704.47

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Solution

The fourth proportional to 189,740.69, 261,847.58 and 103,704.47 is: 143,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,740.69 : 261,847.58 = 103,704.47 : x
  2. Step 2: Convert to fraction form
    189,740.69/261,847.58 = 103,704.47/x
  3. Step 3: Cross multiply
    189,740.69x = 261,847.58 × 103,704.47
  4. Step 4: Simplify right side
    189,740.69x = 27,154,762,676.92
  5. Step 5: Solve for x
    x = 27,154,762,676.92/189,740.69
  6. Step 6: Final answer
    x = 143,115.13

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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.