Home / 102,912.88-154,280.58-39,777.30

Finding the Fourth Proportional to 102,912.88, 154,280.58 and 39,777.30

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Solution

The fourth proportional to 102,912.88, 154,280.58 and 39,777.30 is: 59,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,912.88 : 154,280.58 = 39,777.30 : x
  2. Step 2: Convert to fraction form
    102,912.88/154,280.58 = 39,777.30/x
  3. Step 3: Cross multiply
    102,912.88x = 154,280.58 × 39,777.30
  4. Step 4: Simplify right side
    102,912.88x = 6,136,864,914.83
  5. Step 5: Solve for x
    x = 6,136,864,914.83/102,912.88
  6. Step 6: Final answer
    x = 59,631.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.