Home / 125,291.13-172,901.82-67,930.50

Finding the Fourth Proportional to 125,291.13, 172,901.82 and 67,930.50

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Solution

The fourth proportional to 125,291.13, 172,901.82 and 67,930.50 is: 93,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,291.13 : 172,901.82 = 67,930.50 : x
  2. Step 2: Convert to fraction form
    125,291.13/172,901.82 = 67,930.50/x
  3. Step 3: Cross multiply
    125,291.13x = 172,901.82 × 67,930.50
  4. Step 4: Simplify right side
    125,291.13x = 11,745,307,083.51
  5. Step 5: Solve for x
    x = 11,745,307,083.51/125,291.13
  6. Step 6: Final answer
    x = 93,744.12

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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.