Home / 149,972.34-225,014.67-77,880.32

Finding the Fourth Proportional to 149,972.34, 225,014.67 and 77,880.32

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Solution

The fourth proportional to 149,972.34, 225,014.67 and 77,880.32 is: 116,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,972.34 : 225,014.67 = 77,880.32 : x
  2. Step 2: Convert to fraction form
    149,972.34/225,014.67 = 77,880.32/x
  3. Step 3: Cross multiply
    149,972.34x = 225,014.67 × 77,880.32
  4. Step 4: Simplify right side
    149,972.34x = 17,524,213,379.22
  5. Step 5: Solve for x
    x = 17,524,213,379.22/149,972.34
  6. Step 6: Final answer
    x = 116,849.64

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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.