Home / 146,306.89-201,901.08-81,777.64

Finding the Fourth Proportional to 146,306.89, 201,901.08 and 81,777.64

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Solution

The fourth proportional to 146,306.89, 201,901.08 and 81,777.64 is: 112,851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,306.89 : 201,901.08 = 81,777.64 : x
  2. Step 2: Convert to fraction form
    146,306.89/201,901.08 = 81,777.64/x
  3. Step 3: Cross multiply
    146,306.89x = 201,901.08 × 81,777.64
  4. Step 4: Simplify right side
    146,306.89x = 16,510,993,835.85
  5. Step 5: Solve for x
    x = 16,510,993,835.85/146,306.89
  6. Step 6: Final answer
    x = 112,851.79

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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.