Home / 149,972.09-225,014.30-77,880.07

Finding the Fourth Proportional to 149,972.09, 225,014.30 and 77,880.07

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Solution

The fourth proportional to 149,972.09, 225,014.30 and 77,880.07 is: 116,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,972.09 : 225,014.30 = 77,880.07 : x
  2. Step 2: Convert to fraction form
    149,972.09/225,014.30 = 77,880.07/x
  3. Step 3: Cross multiply
    149,972.09x = 225,014.30 × 77,880.07
  4. Step 4: Simplify right side
    149,972.09x = 17,524,129,045.60
  5. Step 5: Solve for x
    x = 17,524,129,045.60/149,972.09
  6. Step 6: Final answer
    x = 116,849.27

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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.