Home / 156,911.40-235,221.30-109,526.40

Finding the Fourth Proportional to 156,911.40, 235,221.30 and 109,526.40

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Solution

The fourth proportional to 156,911.40, 235,221.30 and 109,526.40 is: 164,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,911.40 : 235,221.30 = 109,526.40 : x
  2. Step 2: Convert to fraction form
    156,911.40/235,221.30 = 109,526.40/x
  3. Step 3: Cross multiply
    156,911.40x = 235,221.30 × 109,526.40
  4. Step 4: Simplify right side
    156,911.40x = 25,762,942,192.32
  5. Step 5: Solve for x
    x = 25,762,942,192.32/156,911.40
  6. Step 6: Final answer
    x = 164,187.83

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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.