Home / 118,776.25-163,913.86-67,787.96

Finding the Fourth Proportional to 118,776.25, 163,913.86 and 67,787.96

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Solution

The fourth proportional to 118,776.25, 163,913.86 and 67,787.96 is: 93,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,776.25 : 163,913.86 = 67,787.96 : x
  2. Step 2: Convert to fraction form
    118,776.25/163,913.86 = 67,787.96/x
  3. Step 3: Cross multiply
    118,776.25x = 163,913.86 × 67,787.96
  4. Step 4: Simplify right side
    118,776.25x = 11,111,386,015.66
  5. Step 5: Solve for x
    x = 11,111,386,015.66/118,776.25
  6. Step 6: Final answer
    x = 93,548.89

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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.