Home / 161,774.20-242,661.30-91,790.20

Finding the Fourth Proportional to 161,774.20, 242,661.30 and 91,790.20

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Solution

The fourth proportional to 161,774.20, 242,661.30 and 91,790.20 is: 137,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,774.20 : 242,661.30 = 91,790.20 : x
  2. Step 2: Convert to fraction form
    161,774.20/242,661.30 = 91,790.20/x
  3. Step 3: Cross multiply
    161,774.20x = 242,661.30 × 91,790.20
  4. Step 4: Simplify right side
    161,774.20x = 22,273,929,259.26
  5. Step 5: Solve for x
    x = 22,273,929,259.26/161,774.20
  6. Step 6: Final answer
    x = 137,685.30

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1.5x scale

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.