Home / 189,533.74-261,567.22-103,500.72

Finding the Fourth Proportional to 189,533.74, 261,567.22 and 103,500.72

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Solution

The fourth proportional to 189,533.74, 261,567.22 and 103,500.72 is: 142,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,533.74 : 261,567.22 = 103,500.72 : x
  2. Step 2: Convert to fraction form
    189,533.74/261,567.22 = 103,500.72/x
  3. Step 3: Cross multiply
    189,533.74x = 261,567.22 × 103,500.72
  4. Step 4: Simplify right side
    189,533.74x = 27,072,396,891.91
  5. Step 5: Solve for x
    x = 27,072,396,891.91/189,533.74
  6. Step 6: Final answer
    x = 142,836.82

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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.