Home / 156,065.40-234,098.10-85,206.60

Finding the Fourth Proportional to 156,065.40, 234,098.10 and 85,206.60

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Solution

The fourth proportional to 156,065.40, 234,098.10 and 85,206.60 is: 127,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,065.40 : 234,098.10 = 85,206.60 : x
  2. Step 2: Convert to fraction form
    156,065.40/234,098.10 = 85,206.60/x
  3. Step 3: Cross multiply
    156,065.40x = 234,098.10 × 85,206.60
  4. Step 4: Simplify right side
    156,065.40x = 19,946,703,167.46
  5. Step 5: Solve for x
    x = 19,946,703,167.46/156,065.40
  6. Step 6: Final answer
    x = 127,809.90

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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.