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Finding the Fourth Proportional to 109,355.57, 149,926.47 and 107,362.67

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Solution

The fourth proportional to 109,355.57, 149,926.47 and 107,362.67 is: 147,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,355.57 : 149,926.47 = 107,362.67 : x
  2. Step 2: Convert to fraction form
    109,355.57/149,926.47 = 107,362.67/x
  3. Step 3: Cross multiply
    109,355.57x = 149,926.47 × 107,362.67
  4. Step 4: Simplify right side
    109,355.57x = 16,096,506,122.87
  5. Step 5: Solve for x
    x = 16,096,506,122.87/109,355.57
  6. Step 6: Final answer
    x = 147,194.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.