Home / 147,919.40-221,727.90-72,924.20

Finding the Fourth Proportional to 147,919.40, 221,727.90 and 72,924.20

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Solution

The fourth proportional to 147,919.40, 221,727.90 and 72,924.20 is: 109,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,919.40 : 221,727.90 = 72,924.20 : x
  2. Step 2: Convert to fraction form
    147,919.40/221,727.90 = 72,924.20/x
  3. Step 3: Cross multiply
    147,919.40x = 221,727.90 × 72,924.20
  4. Step 4: Simplify right side
    147,919.40x = 16,169,329,725.18
  5. Step 5: Solve for x
    x = 16,169,329,725.18/147,919.40
  6. Step 6: Final answer
    x = 109,311.76

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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.