Home / 156,935.83-235,434.06-66,977.23

Finding the Fourth Proportional to 156,935.83, 235,434.06 and 66,977.23

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Solution

The fourth proportional to 156,935.83, 235,434.06 and 66,977.23 is: 100,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.83 : 235,434.06 = 66,977.23 : x
  2. Step 2: Convert to fraction form
    156,935.83/235,434.06 = 66,977.23/x
  3. Step 3: Cross multiply
    156,935.83x = 235,434.06 × 66,977.23
  4. Step 4: Simplify right side
    156,935.83x = 15,768,721,186.45
  5. Step 5: Solve for x
    x = 15,768,721,186.45/156,935.83
  6. Step 6: Final answer
    x = 100,478.78

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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.