Home / 156,717.40-235,113.90-51,530.80

Finding the Fourth Proportional to 156,717.40, 235,113.90 and 51,530.80

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Solution

The fourth proportional to 156,717.40, 235,113.90 and 51,530.80 is: 77,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,717.40 : 235,113.90 = 51,530.80 : x
  2. Step 2: Convert to fraction form
    156,717.40/235,113.90 = 51,530.80/x
  3. Step 3: Cross multiply
    156,717.40x = 235,113.90 × 51,530.80
  4. Step 4: Simplify right side
    156,717.40x = 12,115,607,358.12
  5. Step 5: Solve for x
    x = 12,115,607,358.12/156,717.40
  6. Step 6: Final answer
    x = 77,308.63

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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.