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Finding the Fourth Proportional to 142,755.40, 214,133.10 and 134,007.40

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Solution

The fourth proportional to 142,755.40, 214,133.10 and 134,007.40 is: 201,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,755.40 : 214,133.10 = 134,007.40 : x
  2. Step 2: Convert to fraction form
    142,755.40/214,133.10 = 134,007.40/x
  3. Step 3: Cross multiply
    142,755.40x = 214,133.10 × 134,007.40
  4. Step 4: Simplify right side
    142,755.40x = 28,695,419,984.94
  5. Step 5: Solve for x
    x = 28,695,419,984.94/142,755.40
  6. Step 6: Final answer
    x = 201,011.10

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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.