Home / 147,653.40-221,328.90-72,658.20

Finding the Fourth Proportional to 147,653.40, 221,328.90 and 72,658.20

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Solution

The fourth proportional to 147,653.40, 221,328.90 and 72,658.20 is: 108,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,653.40 : 221,328.90 = 72,658.20 : x
  2. Step 2: Convert to fraction form
    147,653.40/221,328.90 = 72,658.20/x
  3. Step 3: Cross multiply
    147,653.40x = 221,328.90 × 72,658.20
  4. Step 4: Simplify right side
    147,653.40x = 16,081,359,481.98
  5. Step 5: Solve for x
    x = 16,081,359,481.98/147,653.40
  6. Step 6: Final answer
    x = 108,912.90

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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.