Home / 131,621.94-197,437.23-38,128.50

Finding the Fourth Proportional to 131,621.94, 197,437.23 and 38,128.50

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Solution

The fourth proportional to 131,621.94, 197,437.23 and 38,128.50 is: 57,194.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,621.94 : 197,437.23 = 38,128.50 : x
  2. Step 2: Convert to fraction form
    131,621.94/197,437.23 = 38,128.50/x
  3. Step 3: Cross multiply
    131,621.94x = 197,437.23 × 38,128.50
  4. Step 4: Simplify right side
    131,621.94x = 7,527,985,424.06
  5. Step 5: Solve for x
    x = 7,527,985,424.06/131,621.94
  6. Step 6: Final answer
    x = 57,194.00

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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.