Home / 156,712.08-235,166.88-66,754.56

Finding the Fourth Proportional to 156,712.08, 235,166.88 and 66,754.56

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Solution

The fourth proportional to 156,712.08, 235,166.88 and 66,754.56 is: 100,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,712.08 : 235,166.88 = 66,754.56 : x
  2. Step 2: Convert to fraction form
    156,712.08/235,166.88 = 66,754.56/x
  3. Step 3: Cross multiply
    156,712.08x = 235,166.88 × 66,754.56
  4. Step 4: Simplify right side
    156,712.08x = 15,698,461,600.97
  5. Step 5: Solve for x
    x = 15,698,461,600.97/156,712.08
  6. Step 6: Final answer
    x = 100,173.91

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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.