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Finding the Fourth Proportional to 101,998.40, 152,997.60 and 91,284.80

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Solution

The fourth proportional to 101,998.40, 152,997.60 and 91,284.80 is: 136,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,998.40 : 152,997.60 = 91,284.80 : x
  2. Step 2: Convert to fraction form
    101,998.40/152,997.60 = 91,284.80/x
  3. Step 3: Cross multiply
    101,998.40x = 152,997.60 × 91,284.80
  4. Step 4: Simplify right side
    101,998.40x = 13,966,355,316.48
  5. Step 5: Solve for x
    x = 13,966,355,316.48/101,998.40
  6. Step 6: Final answer
    x = 136,927.20

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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.