Home / 162,210.09-242,988.90-80,912.01

Finding the Fourth Proportional to 162,210.09, 242,988.90 and 80,912.01

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Solution

The fourth proportional to 162,210.09, 242,988.90 and 80,912.01 is: 121,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,210.09 : 242,988.90 = 80,912.01 : x
  2. Step 2: Convert to fraction form
    162,210.09/242,988.90 = 80,912.01/x
  3. Step 3: Cross multiply
    162,210.09x = 242,988.90 × 80,912.01
  4. Step 4: Simplify right side
    162,210.09x = 19,660,720,306.69
  5. Step 5: Solve for x
    x = 19,660,720,306.69/162,210.09
  6. Step 6: Final answer
    x = 121,205.29

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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.