Home / 161,705.10-242,557.65-142,022.10

Finding the Fourth Proportional to 161,705.10, 242,557.65 and 142,022.10

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Solution

The fourth proportional to 161,705.10, 242,557.65 and 142,022.10 is: 213,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,705.10 : 242,557.65 = 142,022.10 : x
  2. Step 2: Convert to fraction form
    161,705.10/242,557.65 = 142,022.10/x
  3. Step 3: Cross multiply
    161,705.10x = 242,557.65 × 142,022.10
  4. Step 4: Simplify right side
    161,705.10x = 34,448,546,824.07
  5. Step 5: Solve for x
    x = 34,448,546,824.07/161,705.10
  6. Step 6: Final answer
    x = 213,033.15

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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.