Home / 131,636.80-197,485.92-38,144.32

Finding the Fourth Proportional to 131,636.80, 197,485.92 and 38,144.32

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Solution

The fourth proportional to 131,636.80, 197,485.92 and 38,144.32 is: 57,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,636.80 : 197,485.92 = 38,144.32 : x
  2. Step 2: Convert to fraction form
    131,636.80/197,485.92 = 38,144.32/x
  3. Step 3: Cross multiply
    131,636.80x = 197,485.92 × 38,144.32
  4. Step 4: Simplify right side
    131,636.80x = 7,532,966,127.97
  5. Step 5: Solve for x
    x = 7,532,966,127.97/131,636.80
  6. Step 6: Final answer
    x = 57,225.38

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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.