Home / 148,681.41-205,180.54-80,698.36

Finding the Fourth Proportional to 148,681.41, 205,180.54 and 80,698.36

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Solution

The fourth proportional to 148,681.41, 205,180.54 and 80,698.36 is: 111,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,681.41 : 205,180.54 = 80,698.36 : x
  2. Step 2: Convert to fraction form
    148,681.41/205,180.54 = 80,698.36/x
  3. Step 3: Cross multiply
    148,681.41x = 205,180.54 × 80,698.36
  4. Step 4: Simplify right side
    148,681.41x = 16,557,733,081.91
  5. Step 5: Solve for x
    x = 16,557,733,081.91/148,681.41
  6. Step 6: Final answer
    x = 111,363.84

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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.