Home / 148,807.82-205,356.30-80,825.46

Finding the Fourth Proportional to 148,807.82, 205,356.30 and 80,825.46

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Solution

The fourth proportional to 148,807.82, 205,356.30 and 80,825.46 is: 111,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,807.82 : 205,356.30 = 80,825.46 : x
  2. Step 2: Convert to fraction form
    148,807.82/205,356.30 = 80,825.46/x
  3. Step 3: Cross multiply
    148,807.82x = 205,356.30 × 80,825.46
  4. Step 4: Simplify right side
    148,807.82x = 16,598,017,411.40
  5. Step 5: Solve for x
    x = 16,598,017,411.40/148,807.82
  6. Step 6: Final answer
    x = 111,539.95

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1.5x scale

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.