Home / 161,837.70-242,829.45-77,565.30

Finding the Fourth Proportional to 161,837.70, 242,829.45 and 77,565.30

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Solution

The fourth proportional to 161,837.70, 242,829.45 and 77,565.30 is: 116,382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,837.70 : 242,829.45 = 77,565.30 : x
  2. Step 2: Convert to fraction form
    161,837.70/242,829.45 = 77,565.30/x
  3. Step 3: Cross multiply
    161,837.70x = 242,829.45 × 77,565.30
  4. Step 4: Simplify right side
    161,837.70x = 18,835,139,138.09
  5. Step 5: Solve for x
    x = 18,835,139,138.09/161,837.70
  6. Step 6: Final answer
    x = 116,382.89

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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.