Home / 153,079.00-211,175.42-99,380.86

Finding the Fourth Proportional to 153,079.00, 211,175.42 and 99,380.86

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Solution

The fourth proportional to 153,079.00, 211,175.42 and 99,380.86 is: 137,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,079.00 : 211,175.42 = 99,380.86 : x
  2. Step 2: Convert to fraction form
    153,079.00/211,175.42 = 99,380.86/x
  3. Step 3: Cross multiply
    153,079.00x = 211,175.42 × 99,380.86
  4. Step 4: Simplify right side
    153,079.00x = 20,986,793,825.62
  5. Step 5: Solve for x
    x = 20,986,793,825.62/153,079.00
  6. Step 6: Final answer
    x = 137,097.80

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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.