Home / 156,778.80-235,168.20-51,608.40

Finding the Fourth Proportional to 156,778.80, 235,168.20 and 51,608.40

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Solution

The fourth proportional to 156,778.80, 235,168.20 and 51,608.40 is: 77,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,778.80 : 235,168.20 = 51,608.40 : x
  2. Step 2: Convert to fraction form
    156,778.80/235,168.20 = 51,608.40/x
  3. Step 3: Cross multiply
    156,778.80x = 235,168.20 × 51,608.40
  4. Step 4: Simplify right side
    156,778.80x = 12,136,654,532.88
  5. Step 5: Solve for x
    x = 12,136,654,532.88/156,778.80
  6. Step 6: Final answer
    x = 77,412.60

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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.