Home / 131,379.57-181,303.79-70,950.21

Finding the Fourth Proportional to 131,379.57, 181,303.79 and 70,950.21

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Solution

The fourth proportional to 131,379.57, 181,303.79 and 70,950.21 is: 97,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,379.57 : 181,303.79 = 70,950.21 : x
  2. Step 2: Convert to fraction form
    131,379.57/181,303.79 = 70,950.21/x
  3. Step 3: Cross multiply
    131,379.57x = 181,303.79 × 70,950.21
  4. Step 4: Simplify right side
    131,379.57x = 12,863,540,939.66
  5. Step 5: Solve for x
    x = 12,863,540,939.66/131,379.57
  6. Step 6: Final answer
    x = 97,911.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.