Home / 145,565.46-200,884.26-81,905.52

Finding the Fourth Proportional to 145,565.46, 200,884.26 and 81,905.52

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Solution

The fourth proportional to 145,565.46, 200,884.26 and 81,905.52 is: 113,031.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,565.46 : 200,884.26 = 81,905.52 : x
  2. Step 2: Convert to fraction form
    145,565.46/200,884.26 = 81,905.52/x
  3. Step 3: Cross multiply
    145,565.46x = 200,884.26 × 81,905.52
  4. Step 4: Simplify right side
    145,565.46x = 16,453,529,775.12
  5. Step 5: Solve for x
    x = 16,453,529,775.12/145,565.46
  6. Step 6: Final answer
    x = 113,031.83

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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.