Home / 118,772.77-163,860.80-67,788.33

Finding the Fourth Proportional to 118,772.77, 163,860.80 and 67,788.33

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Solution

The fourth proportional to 118,772.77, 163,860.80 and 67,788.33 is: 93,521.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,772.77 : 163,860.80 = 67,788.33 : x
  2. Step 2: Convert to fraction form
    118,772.77/163,860.80 = 67,788.33/x
  3. Step 3: Cross multiply
    118,772.77x = 163,860.80 × 67,788.33
  4. Step 4: Simplify right side
    118,772.77x = 11,107,849,984.46
  5. Step 5: Solve for x
    x = 11,107,849,984.46/118,772.77
  6. Step 6: Final answer
    x = 93,521.86

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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.