Home / 161,612.72-242,520.04-61,781.36

Finding the Fourth Proportional to 161,612.72, 242,520.04 and 61,781.36

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Solution

The fourth proportional to 161,612.72, 242,520.04 and 61,781.36 is: 92,710.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,612.72 : 242,520.04 = 61,781.36 : x
  2. Step 2: Convert to fraction form
    161,612.72/242,520.04 = 61,781.36/x
  3. Step 3: Cross multiply
    161,612.72x = 242,520.04 × 61,781.36
  4. Step 4: Simplify right side
    161,612.72x = 14,983,217,898.45
  5. Step 5: Solve for x
    x = 14,983,217,898.45/161,612.72
  6. Step 6: Final answer
    x = 92,710.64

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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.