Home / 148,823.42-205,380.02-80,840.37

Finding the Fourth Proportional to 148,823.42, 205,380.02 and 80,840.37

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Solution

The fourth proportional to 148,823.42, 205,380.02 and 80,840.37 is: 111,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,823.42 : 205,380.02 = 80,840.37 : x
  2. Step 2: Convert to fraction form
    148,823.42/205,380.02 = 80,840.37/x
  3. Step 3: Cross multiply
    148,823.42x = 205,380.02 × 80,840.37
  4. Step 4: Simplify right side
    148,823.42x = 16,602,996,807.41
  5. Step 5: Solve for x
    x = 16,602,996,807.41/148,823.42
  6. Step 6: Final answer
    x = 111,561.72

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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.