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Finding the Fourth Proportional to 161,210.55, 241,447.03 and 77,029.89

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Solution

The fourth proportional to 161,210.55, 241,447.03 and 77,029.89 is: 115,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,210.55 : 241,447.03 = 77,029.89 : x
  2. Step 2: Convert to fraction form
    161,210.55/241,447.03 = 77,029.89/x
  3. Step 3: Cross multiply
    161,210.55x = 241,447.03 × 77,029.89
  4. Step 4: Simplify right side
    161,210.55x = 18,598,637,063.73
  5. Step 5: Solve for x
    x = 18,598,637,063.73/161,210.55
  6. Step 6: Final answer
    x = 115,368.61

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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.