Home / 156,989.35-235,498.43-51,808.55

Finding the Fourth Proportional to 156,989.35, 235,498.43 and 51,808.55

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Solution

The fourth proportional to 156,989.35, 235,498.43 and 51,808.55 is: 77,717.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,989.35 : 235,498.43 = 51,808.55 : x
  2. Step 2: Convert to fraction form
    156,989.35/235,498.43 = 51,808.55/x
  3. Step 3: Cross multiply
    156,989.35x = 235,498.43 × 51,808.55
  4. Step 4: Simplify right side
    156,989.35x = 12,200,831,926.53
  5. Step 5: Solve for x
    x = 12,200,831,926.53/156,989.35
  6. Step 6: Final answer
    x = 77,717.58

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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.