Home / 252,173.12-378,346.08-86,077.76

Finding the Fourth Proportional to 252,173.12, 378,346.08 and 86,077.76

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Solution

The fourth proportional to 252,173.12, 378,346.08 and 86,077.76 is: 129,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,173.12 : 378,346.08 = 86,077.76 : x
  2. Step 2: Convert to fraction form
    252,173.12/378,346.08 = 86,077.76/x
  3. Step 3: Cross multiply
    252,173.12x = 378,346.08 × 86,077.76
  4. Step 4: Simplify right side
    252,173.12x = 32,567,183,071.18
  5. Step 5: Solve for x
    x = 32,567,183,071.18/252,173.12
  6. Step 6: Final answer
    x = 129,146.13

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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.