Home / 145,880.15-201,308.78-82,231.16

Finding the Fourth Proportional to 145,880.15, 201,308.78 and 82,231.16

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Solution

The fourth proportional to 145,880.15, 201,308.78 and 82,231.16 is: 113,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,880.15 : 201,308.78 = 82,231.16 : x
  2. Step 2: Convert to fraction form
    145,880.15/201,308.78 = 82,231.16/x
  3. Step 3: Cross multiply
    145,880.15x = 201,308.78 × 82,231.16
  4. Step 4: Simplify right side
    145,880.15x = 16,553,854,086.43
  5. Step 5: Solve for x
    x = 16,553,854,086.43/145,880.15
  6. Step 6: Final answer
    x = 113,475.71

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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.