Home / 161,721.70-242,582.55-144,808.90

Finding the Fourth Proportional to 161,721.70, 242,582.55 and 144,808.90

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Solution

The fourth proportional to 161,721.70, 242,582.55 and 144,808.90 is: 217,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,721.70 : 242,582.55 = 144,808.90 : x
  2. Step 2: Convert to fraction form
    161,721.70/242,582.55 = 144,808.90/x
  3. Step 3: Cross multiply
    161,721.70x = 242,582.55 × 144,808.90
  4. Step 4: Simplify right side
    161,721.70x = 35,128,112,224.70
  5. Step 5: Solve for x
    x = 35,128,112,224.70/161,721.70
  6. Step 6: Final answer
    x = 217,213.35

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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.