Home / 142,731.40-214,097.10-136,170.40

Finding the Fourth Proportional to 142,731.40, 214,097.10 and 136,170.40

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Solution

The fourth proportional to 142,731.40, 214,097.10 and 136,170.40 is: 204,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,731.40 : 214,097.10 = 136,170.40 : x
  2. Step 2: Convert to fraction form
    142,731.40/214,097.10 = 136,170.40/x
  3. Step 3: Cross multiply
    142,731.40x = 214,097.10 × 136,170.40
  4. Step 4: Simplify right side
    142,731.40x = 29,153,687,745.84
  5. Step 5: Solve for x
    x = 29,153,687,745.84/142,731.40
  6. Step 6: Final answer
    x = 204,255.60

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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.