Home / 156,783.30-235,174.95-51,612.90

Finding the Fourth Proportional to 156,783.30, 235,174.95 and 51,612.90

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Solution

The fourth proportional to 156,783.30, 235,174.95 and 51,612.90 is: 77,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,783.30 : 235,174.95 = 51,612.90 : x
  2. Step 2: Convert to fraction form
    156,783.30/235,174.95 = 51,612.90/x
  3. Step 3: Cross multiply
    156,783.30x = 235,174.95 × 51,612.90
  4. Step 4: Simplify right side
    156,783.30x = 12,138,061,176.86
  5. Step 5: Solve for x
    x = 12,138,061,176.86/156,783.30
  6. Step 6: Final answer
    x = 77,419.35

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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.