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Finding the Fourth Proportional to 109,995.50, 151,715.39 and 100,950.01

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Solution

The fourth proportional to 109,995.50, 151,715.39 and 100,950.01 is: 139,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,995.50 : 151,715.39 = 100,950.01 : x
  2. Step 2: Convert to fraction form
    109,995.50/151,715.39 = 100,950.01/x
  3. Step 3: Cross multiply
    109,995.50x = 151,715.39 × 100,950.01
  4. Step 4: Simplify right side
    109,995.50x = 15,315,669,253.62
  5. Step 5: Solve for x
    x = 15,315,669,253.62/109,995.50
  6. Step 6: Final answer
    x = 139,239.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.