Home / 131,504.67-197,306.69-78,950.79

Finding the Fourth Proportional to 131,504.67, 197,306.69 and 78,950.79

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Solution

The fourth proportional to 131,504.67, 197,306.69 and 78,950.79 is: 118,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,504.67 : 197,306.69 = 78,950.79 : x
  2. Step 2: Convert to fraction form
    131,504.67/197,306.69 = 78,950.79/x
  3. Step 3: Cross multiply
    131,504.67x = 197,306.69 × 78,950.79
  4. Step 4: Simplify right side
    131,504.67x = 15,577,518,653.03
  5. Step 5: Solve for x
    x = 15,577,518,653.03/131,504.67
  6. Step 6: Final answer
    x = 118,456.01

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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.