Home / 167,429.70-251,168.85-78,686.10

Finding the Fourth Proportional to 167,429.70, 251,168.85 and 78,686.10

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Solution

The fourth proportional to 167,429.70, 251,168.85 and 78,686.10 is: 118,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,429.70 : 251,168.85 = 78,686.10 : x
  2. Step 2: Convert to fraction form
    167,429.70/251,168.85 = 78,686.10/x
  3. Step 3: Cross multiply
    167,429.70x = 251,168.85 × 78,686.10
  4. Step 4: Simplify right side
    167,429.70x = 19,763,497,247.99
  5. Step 5: Solve for x
    x = 19,763,497,247.99/167,429.70
  6. Step 6: Final answer
    x = 118,040.57

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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.