Home / 118,935.20-164,216.64-76,567.52

Finding the Fourth Proportional to 118,935.20, 164,216.64 and 76,567.52

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Solution

The fourth proportional to 118,935.20, 164,216.64 and 76,567.52 is: 105,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,935.20 : 164,216.64 = 76,567.52 : x
  2. Step 2: Convert to fraction form
    118,935.20/164,216.64 = 76,567.52/x
  3. Step 3: Cross multiply
    118,935.20x = 164,216.64 × 76,567.52
  4. Step 4: Simplify right side
    118,935.20x = 12,573,660,867.53
  5. Step 5: Solve for x
    x = 12,573,660,867.53/118,935.20
  6. Step 6: Final answer
    x = 105,718.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.