Home / 148,681.07-205,180.07-80,698.04

Finding the Fourth Proportional to 148,681.07, 205,180.07 and 80,698.04

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Solution

The fourth proportional to 148,681.07, 205,180.07 and 80,698.04 is: 111,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,681.07 : 205,180.07 = 80,698.04 : x
  2. Step 2: Convert to fraction form
    148,681.07/205,180.07 = 80,698.04/x
  3. Step 3: Cross multiply
    148,681.07x = 205,180.07 × 80,698.04
  4. Step 4: Simplify right side
    148,681.07x = 16,557,628,066.67
  5. Step 5: Solve for x
    x = 16,557,628,066.67/148,681.07
  6. Step 6: Final answer
    x = 111,363.39

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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.