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Finding the Fourth Proportional to 161,363.62, 242,045.09 and 76,867.51

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Solution

The fourth proportional to 161,363.62, 242,045.09 and 76,867.51 is: 115,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,363.62 : 242,045.09 = 76,867.51 : x
  2. Step 2: Convert to fraction form
    161,363.62/242,045.09 = 76,867.51/x
  3. Step 3: Cross multiply
    161,363.62x = 242,045.09 × 76,867.51
  4. Step 4: Simplify right side
    161,363.62x = 18,605,402,231.72
  5. Step 5: Solve for x
    x = 18,605,402,231.72/161,363.62
  6. Step 6: Final answer
    x = 115,301.10

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1.5x scale

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.