Home / 143,013.60-214,520.40-109,900.80

Finding the Fourth Proportional to 143,013.60, 214,520.40 and 109,900.80

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Solution

The fourth proportional to 143,013.60, 214,520.40 and 109,900.80 is: 164,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,013.60 : 214,520.40 = 109,900.80 : x
  2. Step 2: Convert to fraction form
    143,013.60/214,520.40 = 109,900.80/x
  3. Step 3: Cross multiply
    143,013.60x = 214,520.40 × 109,900.80
  4. Step 4: Simplify right side
    143,013.60x = 23,575,963,576.32
  5. Step 5: Solve for x
    x = 23,575,963,576.32/143,013.60
  6. Step 6: Final answer
    x = 164,851.20

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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.