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Finding the Fourth Proportional to 140,506.80, 210,322.80 and 136,132.80

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Solution

The fourth proportional to 140,506.80, 210,322.80 and 136,132.80 is: 203,775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,506.80 : 210,322.80 = 136,132.80 : x
  2. Step 2: Convert to fraction form
    140,506.80/210,322.80 = 136,132.80/x
  3. Step 3: Cross multiply
    140,506.80x = 210,322.80 × 136,132.80
  4. Step 4: Simplify right side
    140,506.80x = 28,631,831,667.84
  5. Step 5: Solve for x
    x = 28,631,831,667.84/140,506.80
  6. Step 6: Final answer
    x = 203,775.42

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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.