Home / 134,518.28-185,653-86,910.12

Finding the Fourth Proportional to 134,518.28, 185,653 and 86,910.12

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Solution

The fourth proportional to 134,518.28, 185,653 and 86,910.12 is: 119,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,518.28 : 185,653 = 86,910.12 : x
  2. Step 2: Convert to fraction form
    134,518.28/185,653 = 86,910.12/x
  3. Step 3: Cross multiply
    134,518.28x = 185,653 × 86,910.12
  4. Step 4: Simplify right side
    134,518.28x = 16,135,124,508.36
  5. Step 5: Solve for x
    x = 16,135,124,508.36/134,518.28
  6. Step 6: Final answer
    x = 119,947.45

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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.