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Finding the Fourth Proportional to 133,091.60, 199,637.40 and 125,315.60

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Solution

The fourth proportional to 133,091.60, 199,637.40 and 125,315.60 is: 187,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,091.60 : 199,637.40 = 125,315.60 : x
  2. Step 2: Convert to fraction form
    133,091.60/199,637.40 = 125,315.60/x
  3. Step 3: Cross multiply
    133,091.60x = 199,637.40 × 125,315.60
  4. Step 4: Simplify right side
    133,091.60x = 25,017,680,563.44
  5. Step 5: Solve for x
    x = 25,017,680,563.44/133,091.60
  6. Step 6: Final answer
    x = 187,973.40

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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.