Home / 134,870.30-202,362.15-72,467.90

Finding the Fourth Proportional to 134,870.30, 202,362.15 and 72,467.90

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Solution

The fourth proportional to 134,870.30, 202,362.15 and 72,467.90 is: 108,732.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,870.30 : 202,362.15 = 72,467.90 : x
  2. Step 2: Convert to fraction form
    134,870.30/202,362.15 = 72,467.90/x
  3. Step 3: Cross multiply
    134,870.30x = 202,362.15 × 72,467.90
  4. Step 4: Simplify right side
    134,870.30x = 14,664,760,049.99
  5. Step 5: Solve for x
    x = 14,664,760,049.99/134,870.30
  6. Step 6: Final answer
    x = 108,732.32

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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.