Home / 134,147.10-200,929.05-81,464.70

Finding the Fourth Proportional to 134,147.10, 200,929.05 and 81,464.70

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Solution

The fourth proportional to 134,147.10, 200,929.05 and 81,464.70 is: 122,019.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,147.10 : 200,929.05 = 81,464.70 : x
  2. Step 2: Convert to fraction form
    134,147.10/200,929.05 = 81,464.70/x
  3. Step 3: Cross multiply
    134,147.10x = 200,929.05 × 81,464.70
  4. Step 4: Simplify right side
    134,147.10x = 16,368,624,779.54
  5. Step 5: Solve for x
    x = 16,368,624,779.54/134,147.10
  6. Step 6: Final answer
    x = 122,019.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.