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Finding the Fourth Proportional to 142,801.80, 214,202.70 and 136,043.40

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Solution

The fourth proportional to 142,801.80, 214,202.70 and 136,043.40 is: 204,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,801.80 : 214,202.70 = 136,043.40 : x
  2. Step 2: Convert to fraction form
    142,801.80/214,202.70 = 136,043.40/x
  3. Step 3: Cross multiply
    142,801.80x = 214,202.70 × 136,043.40
  4. Step 4: Simplify right side
    142,801.80x = 29,140,863,597.18
  5. Step 5: Solve for x
    x = 29,140,863,597.18/142,801.80
  6. Step 6: Final answer
    x = 204,065.10

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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.