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Finding the Fourth Proportional to 161,880.15, 242,820.23 and 91,896.15

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Solution

The fourth proportional to 161,880.15, 242,820.23 and 91,896.15 is: 137,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,880.15 : 242,820.23 = 91,896.15 : x
  2. Step 2: Convert to fraction form
    161,880.15/242,820.23 = 91,896.15/x
  3. Step 3: Cross multiply
    161,880.15x = 242,820.23 × 91,896.15
  4. Step 4: Simplify right side
    161,880.15x = 22,314,243,819.63
  5. Step 5: Solve for x
    x = 22,314,243,819.63/161,880.15
  6. Step 6: Final answer
    x = 137,844.23

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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.