Home / 148,811.47-205,357.64-80,829.33

Finding the Fourth Proportional to 148,811.47, 205,357.64 and 80,829.33

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Solution

The fourth proportional to 148,811.47, 205,357.64 and 80,829.33 is: 111,543.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,811.47 : 205,357.64 = 80,829.33 : x
  2. Step 2: Convert to fraction form
    148,811.47/205,357.64 = 80,829.33/x
  3. Step 3: Cross multiply
    148,811.47x = 205,357.64 × 80,829.33
  4. Step 4: Simplify right side
    148,811.47x = 16,598,920,451.58
  5. Step 5: Solve for x
    x = 16,598,920,451.58/148,811.47
  6. Step 6: Final answer
    x = 111,543.29

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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.