Home / 161,880.90-242,821.35-136,220.10

Finding the Fourth Proportional to 161,880.90, 242,821.35 and 136,220.10

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Solution

The fourth proportional to 161,880.90, 242,821.35 and 136,220.10 is: 204,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,880.90 : 242,821.35 = 136,220.10 : x
  2. Step 2: Convert to fraction form
    161,880.90/242,821.35 = 136,220.10/x
  3. Step 3: Cross multiply
    161,880.90x = 242,821.35 × 136,220.10
  4. Step 4: Simplify right side
    161,880.90x = 33,077,148,579.14
  5. Step 5: Solve for x
    x = 33,077,148,579.14/161,880.90
  6. Step 6: Final answer
    x = 204,330.15

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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.