Home / 101,631.10-140,248.96-61,346.56

Finding the Fourth Proportional to 101,631.10, 140,248.96 and 61,346.56

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Solution

The fourth proportional to 101,631.10, 140,248.96 and 61,346.56 is: 84,657.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,631.10 : 140,248.96 = 61,346.56 : x
  2. Step 2: Convert to fraction form
    101,631.10/140,248.96 = 61,346.56/x
  3. Step 3: Cross multiply
    101,631.10x = 140,248.96 × 61,346.56
  4. Step 4: Simplify right side
    101,631.10x = 8,603,791,239.58
  5. Step 5: Solve for x
    x = 8,603,791,239.58/101,631.10
  6. Step 6: Final answer
    x = 84,657.07

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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.