Home / 100,683.09-151,014.21-34,121.49

Finding the Fourth Proportional to 100,683.09, 151,014.21 and 34,121.49

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Solution

The fourth proportional to 100,683.09, 151,014.21 and 34,121.49 is: 51,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,683.09 : 151,014.21 = 34,121.49 : x
  2. Step 2: Convert to fraction form
    100,683.09/151,014.21 = 34,121.49/x
  3. Step 3: Cross multiply
    100,683.09x = 151,014.21 × 34,121.49
  4. Step 4: Simplify right side
    100,683.09x = 5,152,829,856.37
  5. Step 5: Solve for x
    x = 5,152,829,856.37/100,683.09
  6. Step 6: Final answer
    x = 51,178.70

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1.5x scale

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.