Home / 152,883.85-211,079.64-99,321.52

Finding the Fourth Proportional to 152,883.85, 211,079.64 and 99,321.52

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Solution

The fourth proportional to 152,883.85, 211,079.64 and 99,321.52 is: 137,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,883.85 : 211,079.64 = 99,321.52 : x
  2. Step 2: Convert to fraction form
    152,883.85/211,079.64 = 99,321.52/x
  3. Step 3: Cross multiply
    152,883.85x = 211,079.64 × 99,321.52
  4. Step 4: Simplify right side
    152,883.85x = 20,964,750,189.25
  5. Step 5: Solve for x
    x = 20,964,750,189.25/152,883.85
  6. Step 6: Final answer
    x = 137,128.61

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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.