Home / 153,179.11-211,355.91-89,504.59

Finding the Fourth Proportional to 153,179.11, 211,355.91 and 89,504.59

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Solution

The fourth proportional to 153,179.11, 211,355.91 and 89,504.59 is: 123,498.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,179.11 : 211,355.91 = 89,504.59 : x
  2. Step 2: Convert to fraction form
    153,179.11/211,355.91 = 89,504.59/x
  3. Step 3: Cross multiply
    153,179.11x = 211,355.91 × 89,504.59
  4. Step 4: Simplify right side
    153,179.11x = 18,917,324,068.63
  5. Step 5: Solve for x
    x = 18,917,324,068.63/153,179.11
  6. Step 6: Final answer
    x = 123,498.07

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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.