Home / 147,431.03-203,462.15-82,920.60

Finding the Fourth Proportional to 147,431.03, 203,462.15 and 82,920.60

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Solution

The fourth proportional to 147,431.03, 203,462.15 and 82,920.60 is: 114,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,431.03 : 203,462.15 = 82,920.60 : x
  2. Step 2: Convert to fraction form
    147,431.03/203,462.15 = 82,920.60/x
  3. Step 3: Cross multiply
    147,431.03x = 203,462.15 × 82,920.60
  4. Step 4: Simplify right side
    147,431.03x = 16,871,203,140.69
  5. Step 5: Solve for x
    x = 16,871,203,140.69/147,431.03
  6. Step 6: Final answer
    x = 114,434.55

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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.