Home / 151,175.74-208,631.14-86,655.72

Finding the Fourth Proportional to 151,175.74, 208,631.14 and 86,655.72

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Solution

The fourth proportional to 151,175.74, 208,631.14 and 86,655.72 is: 119,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,175.74 : 208,631.14 = 86,655.72 : x
  2. Step 2: Convert to fraction form
    151,175.74/208,631.14 = 86,655.72/x
  3. Step 3: Cross multiply
    151,175.74x = 208,631.14 × 86,655.72
  4. Step 4: Simplify right side
    151,175.74x = 18,079,081,651.12
  5. Step 5: Solve for x
    x = 18,079,081,651.12/151,175.74
  6. Step 6: Final answer
    x = 119,589.83

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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.