Home / 150,099.75-207,138.47-82,117.53

Finding the Fourth Proportional to 150,099.75, 207,138.47 and 82,117.53

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Solution

The fourth proportional to 150,099.75, 207,138.47 and 82,117.53 is: 113,322.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,099.75 : 207,138.47 = 82,117.53 : x
  2. Step 2: Convert to fraction form
    150,099.75/207,138.47 = 82,117.53/x
  3. Step 3: Cross multiply
    150,099.75x = 207,138.47 × 82,117.53
  4. Step 4: Simplify right side
    150,099.75x = 17,009,699,113.79
  5. Step 5: Solve for x
    x = 17,009,699,113.79/150,099.75
  6. Step 6: Final answer
    x = 113,322.63

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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.