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Finding the Fourth Proportional to 157,073.40, 235,350.90 and 133,745.40

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Solution

The fourth proportional to 157,073.40, 235,350.90 and 133,745.40 is: 200,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,073.40 : 235,350.90 = 133,745.40 : x
  2. Step 2: Convert to fraction form
    157,073.40/235,350.90 = 133,745.40/x
  3. Step 3: Cross multiply
    157,073.40x = 235,350.90 × 133,745.40
  4. Step 4: Simplify right side
    157,073.40x = 31,477,100,260.86
  5. Step 5: Solve for x
    x = 31,477,100,260.86/157,073.40
  6. Step 6: Final answer
    x = 200,397.40

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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.