Home / 137,605.14-189,814.44-86,536.86

Finding the Fourth Proportional to 137,605.14, 189,814.44 and 86,536.86

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Solution

The fourth proportional to 137,605.14, 189,814.44 and 86,536.86 is: 119,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,605.14 : 189,814.44 = 86,536.86 : x
  2. Step 2: Convert to fraction form
    137,605.14/189,814.44 = 86,536.86/x
  3. Step 3: Cross multiply
    137,605.14x = 189,814.44 × 86,536.86
  4. Step 4: Simplify right side
    137,605.14x = 16,425,946,712.83
  5. Step 5: Solve for x
    x = 16,425,946,712.83/137,605.14
  6. Step 6: Final answer
    x = 119,370.16

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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.