Home / 156,920.20-235,380.30-145,400.20

Finding the Fourth Proportional to 156,920.20, 235,380.30 and 145,400.20

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Solution

The fourth proportional to 156,920.20, 235,380.30 and 145,400.20 is: 218,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,920.20 : 235,380.30 = 145,400.20 : x
  2. Step 2: Convert to fraction form
    156,920.20/235,380.30 = 145,400.20/x
  3. Step 3: Cross multiply
    156,920.20x = 235,380.30 × 145,400.20
  4. Step 4: Simplify right side
    156,920.20x = 34,224,342,696.06
  5. Step 5: Solve for x
    x = 34,224,342,696.06/156,920.20
  6. Step 6: Final answer
    x = 218,100.30

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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.