Home / 156,784.80-235,177.20-51,614.40

Finding the Fourth Proportional to 156,784.80, 235,177.20 and 51,614.40

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Solution

The fourth proportional to 156,784.80, 235,177.20 and 51,614.40 is: 77,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,784.80 : 235,177.20 = 51,614.40 : x
  2. Step 2: Convert to fraction form
    156,784.80/235,177.20 = 51,614.40/x
  3. Step 3: Cross multiply
    156,784.80x = 235,177.20 × 51,614.40
  4. Step 4: Simplify right side
    156,784.80x = 12,138,530,071.68
  5. Step 5: Solve for x
    x = 12,138,530,071.68/156,784.80
  6. Step 6: Final answer
    x = 77,421.60

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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.