Home / 151,321.66-208,776.81-85,899.58

Finding the Fourth Proportional to 151,321.66, 208,776.81 and 85,899.58

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Solution

The fourth proportional to 151,321.66, 208,776.81 and 85,899.58 is: 118,514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,321.66 : 208,776.81 = 85,899.58 : x
  2. Step 2: Convert to fraction form
    151,321.66/208,776.81 = 85,899.58/x
  3. Step 3: Cross multiply
    151,321.66x = 208,776.81 × 85,899.58
  4. Step 4: Simplify right side
    151,321.66x = 17,933,840,292.74
  5. Step 5: Solve for x
    x = 17,933,840,292.74/151,321.66
  6. Step 6: Final answer
    x = 118,514.69

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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.