Home / 156,698.40-235,047.60-51,520.80

Finding the Fourth Proportional to 156,698.40, 235,047.60 and 51,520.80

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Solution

The fourth proportional to 156,698.40, 235,047.60 and 51,520.80 is: 77,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,698.40 : 235,047.60 = 51,520.80 : x
  2. Step 2: Convert to fraction form
    156,698.40/235,047.60 = 51,520.80/x
  3. Step 3: Cross multiply
    156,698.40x = 235,047.60 × 51,520.80
  4. Step 4: Simplify right side
    156,698.40x = 12,109,840,390.08
  5. Step 5: Solve for x
    x = 12,109,840,390.08/156,698.40
  6. Step 6: Final answer
    x = 77,281.20

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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.