Home / 131,431.10-197,146.65-48,314.30

Finding the Fourth Proportional to 131,431.10, 197,146.65 and 48,314.30

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Solution

The fourth proportional to 131,431.10, 197,146.65 and 48,314.30 is: 72,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,431.10 : 197,146.65 = 48,314.30 : x
  2. Step 2: Convert to fraction form
    131,431.10/197,146.65 = 48,314.30/x
  3. Step 3: Cross multiply
    131,431.10x = 197,146.65 × 48,314.30
  4. Step 4: Simplify right side
    131,431.10x = 9,525,002,392.10
  5. Step 5: Solve for x
    x = 9,525,002,392.10/131,431.10
  6. Step 6: Final answer
    x = 72,471.45

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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.