Home / 131,450.18-197,091.20-78,127.93

Finding the Fourth Proportional to 131,450.18, 197,091.20 and 78,127.93

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Solution

The fourth proportional to 131,450.18, 197,091.20 and 78,127.93 is: 117,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,450.18 : 197,091.20 = 78,127.93 : x
  2. Step 2: Convert to fraction form
    131,450.18/197,091.20 = 78,127.93/x
  3. Step 3: Cross multiply
    131,450.18x = 197,091.20 × 78,127.93
  4. Step 4: Simplify right side
    131,450.18x = 15,398,327,477.22
  5. Step 5: Solve for x
    x = 15,398,327,477.22/131,450.18
  6. Step 6: Final answer
    x = 117,141.93

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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.