Home / 156,910.15-235,365.23-51,715.45

Finding the Fourth Proportional to 156,910.15, 235,365.23 and 51,715.45

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Solution

The fourth proportional to 156,910.15, 235,365.23 and 51,715.45 is: 77,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,910.15 : 235,365.23 = 51,715.45 : x
  2. Step 2: Convert to fraction form
    156,910.15/235,365.23 = 51,715.45/x
  3. Step 3: Cross multiply
    156,910.15x = 235,365.23 × 51,715.45
  4. Step 4: Simplify right side
    156,910.15x = 12,172,018,783.80
  5. Step 5: Solve for x
    x = 12,172,018,783.80/156,910.15
  6. Step 6: Final answer
    x = 77,573.18

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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.