Home / 145,805.86-201,214.56-82,144.72

Finding the Fourth Proportional to 145,805.86, 201,214.56 and 82,144.72

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Solution

The fourth proportional to 145,805.86, 201,214.56 and 82,144.72 is: 113,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,805.86 : 201,214.56 = 82,144.72 : x
  2. Step 2: Convert to fraction form
    145,805.86/201,214.56 = 82,144.72/x
  3. Step 3: Cross multiply
    145,805.86x = 201,214.56 × 82,144.72
  4. Step 4: Simplify right side
    145,805.86x = 16,528,713,691.12
  5. Step 5: Solve for x
    x = 16,528,713,691.12/145,805.86
  6. Step 6: Final answer
    x = 113,361.11

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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.