Home / 134,511.57-185,618.79-77,147.91

Finding the Fourth Proportional to 134,511.57, 185,618.79 and 77,147.91

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Solution

The fourth proportional to 134,511.57, 185,618.79 and 77,147.91 is: 106,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,511.57 : 185,618.79 = 77,147.91 : x
  2. Step 2: Convert to fraction form
    134,511.57/185,618.79 = 77,147.91/x
  3. Step 3: Cross multiply
    134,511.57x = 185,618.79 × 77,147.91
  4. Step 4: Simplify right side
    134,511.57x = 14,320,101,705.23
  5. Step 5: Solve for x
    x = 14,320,101,705.23/134,511.57
  6. Step 6: Final answer
    x = 106,460.00

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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.