Home / 147,690.29-221,533.79-100,187.71

Finding the Fourth Proportional to 147,690.29, 221,533.79 and 100,187.71

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Solution

The fourth proportional to 147,690.29, 221,533.79 and 100,187.71 is: 150,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,690.29 : 221,533.79 = 100,187.71 : x
  2. Step 2: Convert to fraction form
    147,690.29/221,533.79 = 100,187.71/x
  3. Step 3: Cross multiply
    147,690.29x = 221,533.79 × 100,187.71
  4. Step 4: Simplify right side
    147,690.29x = 22,194,962,052.95
  5. Step 5: Solve for x
    x = 22,194,962,052.95/147,690.29
  6. Step 6: Final answer
    x = 150,280.44

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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.