Home / 147,903.90-221,704.65-72,908.70

Finding the Fourth Proportional to 147,903.90, 221,704.65 and 72,908.70

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Solution

The fourth proportional to 147,903.90, 221,704.65 and 72,908.70 is: 109,288.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,903.90 : 221,704.65 = 72,908.70 : x
  2. Step 2: Convert to fraction form
    147,903.90/221,704.65 = 72,908.70/x
  3. Step 3: Cross multiply
    147,903.90x = 221,704.65 × 72,908.70
  4. Step 4: Simplify right side
    147,903.90x = 16,164,197,815.46
  5. Step 5: Solve for x
    x = 16,164,197,815.46/147,903.90
  6. Step 6: Final answer
    x = 109,288.52

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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.