Home / 145,760.88-201,149.04-82,119.12

Finding the Fourth Proportional to 145,760.88, 201,149.04 and 82,119.12

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Solution

The fourth proportional to 145,760.88, 201,149.04 and 82,119.12 is: 113,323.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,760.88 : 201,149.04 = 82,119.12 : x
  2. Step 2: Convert to fraction form
    145,760.88/201,149.04 = 82,119.12/x
  3. Step 3: Cross multiply
    145,760.88x = 201,149.04 × 82,119.12
  4. Step 4: Simplify right side
    145,760.88x = 16,518,182,153.64
  5. Step 5: Solve for x
    x = 16,518,182,153.64/145,760.88
  6. Step 6: Final answer
    x = 113,323.84

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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.