Home / 161,721.20-242,581.80-144,808.40

Finding the Fourth Proportional to 161,721.20, 242,581.80 and 144,808.40

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Solution

The fourth proportional to 161,721.20, 242,581.80 and 144,808.40 is: 217,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,721.20 : 242,581.80 = 144,808.40 : x
  2. Step 2: Convert to fraction form
    161,721.20/242,581.80 = 144,808.40/x
  3. Step 3: Cross multiply
    161,721.20x = 242,581.80 × 144,808.40
  4. Step 4: Simplify right side
    161,721.20x = 35,127,882,327.12
  5. Step 5: Solve for x
    x = 35,127,882,327.12/161,721.20
  6. Step 6: Final answer
    x = 217,212.60

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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.