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Finding the Fourth Proportional to 97,940.91, 135,224.40 and 61,202.90

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Solution

The fourth proportional to 97,940.91, 135,224.40 and 61,202.90 is: 84,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,940.91 : 135,224.40 = 61,202.90 : x
  2. Step 2: Convert to fraction form
    97,940.91/135,224.40 = 61,202.90/x
  3. Step 3: Cross multiply
    97,940.91x = 135,224.40 × 61,202.90
  4. Step 4: Simplify right side
    97,940.91x = 8,276,124,754.64
  5. Step 5: Solve for x
    x = 8,276,124,754.64/97,940.91
  6. Step 6: Final answer
    x = 84,501.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.