Home / 113,101.74-169,691.40-70,930.89

Finding the Fourth Proportional to 113,101.74, 169,691.40 and 70,930.89

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Solution

The fourth proportional to 113,101.74, 169,691.40 and 70,930.89 is: 106,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,101.74 : 169,691.40 = 70,930.89 : x
  2. Step 2: Convert to fraction form
    113,101.74/169,691.40 = 70,930.89/x
  3. Step 3: Cross multiply
    113,101.74x = 169,691.40 × 70,930.89
  4. Step 4: Simplify right side
    113,101.74x = 12,036,362,027.35
  5. Step 5: Solve for x
    x = 12,036,362,027.35/113,101.74
  6. Step 6: Final answer
    x = 106,420.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.