Home / 114,014.40-171,021.60-66,775.20

Finding the Fourth Proportional to 114,014.40, 171,021.60 and 66,775.20

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Solution

The fourth proportional to 114,014.40, 171,021.60 and 66,775.20 is: 100,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,014.40 : 171,021.60 = 66,775.20 : x
  2. Step 2: Convert to fraction form
    114,014.40/171,021.60 = 66,775.20/x
  3. Step 3: Cross multiply
    114,014.40x = 171,021.60 × 66,775.20
  4. Step 4: Simplify right side
    114,014.40x = 11,420,001,544.32
  5. Step 5: Solve for x
    x = 11,420,001,544.32/114,014.40
  6. Step 6: Final answer
    x = 100,162.80

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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.