Home / 145,145.38-200,296.74-80,612.62

Finding the Fourth Proportional to 145,145.38, 200,296.74 and 80,612.62

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Solution

The fourth proportional to 145,145.38, 200,296.74 and 80,612.62 is: 111,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,145.38 : 200,296.74 = 80,612.62 : x
  2. Step 2: Convert to fraction form
    145,145.38/200,296.74 = 80,612.62/x
  3. Step 3: Cross multiply
    145,145.38x = 200,296.74 × 80,612.62
  4. Step 4: Simplify right side
    145,145.38x = 16,146,444,988.86
  5. Step 5: Solve for x
    x = 16,146,444,988.86/145,145.38
  6. Step 6: Final answer
    x = 111,243.26

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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.