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Finding the Fourth Proportional to 133,387.80, 200,081.70 and 127,482.90

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Solution

The fourth proportional to 133,387.80, 200,081.70 and 127,482.90 is: 191,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,387.80 : 200,081.70 = 127,482.90 : x
  2. Step 2: Convert to fraction form
    133,387.80/200,081.70 = 127,482.90/x
  3. Step 3: Cross multiply
    133,387.80x = 200,081.70 × 127,482.90
  4. Step 4: Simplify right side
    133,387.80x = 25,506,995,352.93
  5. Step 5: Solve for x
    x = 25,506,995,352.93/133,387.80
  6. Step 6: Final answer
    x = 191,224.35

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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.