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Finding the Fourth Proportional to 133,387.40, 200,081.10 and 127,263.80

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Solution

The fourth proportional to 133,387.40, 200,081.10 and 127,263.80 is: 190,895.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,387.40 : 200,081.10 = 127,263.80 : x
  2. Step 2: Convert to fraction form
    133,387.40/200,081.10 = 127,263.80/x
  3. Step 3: Cross multiply
    133,387.40x = 200,081.10 × 127,263.80
  4. Step 4: Simplify right side
    133,387.40x = 25,463,081,094.18
  5. Step 5: Solve for x
    x = 25,463,081,094.18/133,387.40
  6. Step 6: Final answer
    x = 190,895.70

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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.