Home / 157,845.20-236,508.60-131,406.80

Finding the Fourth Proportional to 157,845.20, 236,508.60 and 131,406.80

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Solution

The fourth proportional to 157,845.20, 236,508.60 and 131,406.80 is: 196,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,845.20 : 236,508.60 = 131,406.80 : x
  2. Step 2: Convert to fraction form
    157,845.20/236,508.60 = 131,406.80/x
  3. Step 3: Cross multiply
    157,845.20x = 236,508.60 × 131,406.80
  4. Step 4: Simplify right side
    157,845.20x = 31,078,838,298.48
  5. Step 5: Solve for x
    x = 31,078,838,298.48/157,845.20
  6. Step 6: Final answer
    x = 196,894.41

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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.