Home / 189,922.89-284,884.34-77,603.01

Finding the Fourth Proportional to 189,922.89, 284,884.34 and 77,603.01

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Solution

The fourth proportional to 189,922.89, 284,884.34 and 77,603.01 is: 116,404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,922.89 : 284,884.34 = 77,603.01 : x
  2. Step 2: Convert to fraction form
    189,922.89/284,884.34 = 77,603.01/x
  3. Step 3: Cross multiply
    189,922.89x = 284,884.34 × 77,603.01
  4. Step 4: Simplify right side
    189,922.89x = 22,107,880,829.53
  5. Step 5: Solve for x
    x = 22,107,880,829.53/189,922.89
  6. Step 6: Final answer
    x = 116,404.51

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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.