Home / 131,622.32-197,433.50-38,128.12

Finding the Fourth Proportional to 131,622.32, 197,433.50 and 38,128.12

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Solution

The fourth proportional to 131,622.32, 197,433.50 and 38,128.12 is: 57,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,622.32 : 197,433.50 = 38,128.12 : x
  2. Step 2: Convert to fraction form
    131,622.32/197,433.50 = 38,128.12/x
  3. Step 3: Cross multiply
    131,622.32x = 197,433.50 × 38,128.12
  4. Step 4: Simplify right side
    131,622.32x = 7,527,768,180.02
  5. Step 5: Solve for x
    x = 7,527,768,180.02/131,622.32
  6. Step 6: Final answer
    x = 57,192.19

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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.