Home / 118,307.25-163,278.32-67,332.36

Finding the Fourth Proportional to 118,307.25, 163,278.32 and 67,332.36

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Solution

The fourth proportional to 118,307.25, 163,278.32 and 67,332.36 is: 92,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,307.25 : 163,278.32 = 67,332.36 : x
  2. Step 2: Convert to fraction form
    118,307.25/163,278.32 = 67,332.36/x
  3. Step 3: Cross multiply
    118,307.25x = 163,278.32 × 67,332.36
  4. Step 4: Simplify right side
    118,307.25x = 10,993,914,898.07
  5. Step 5: Solve for x
    x = 10,993,914,898.07/118,307.25
  6. Step 6: Final answer
    x = 92,926.81

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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.