Home / 189,401.55-284,071.32-77,077.23

Finding the Fourth Proportional to 189,401.55, 284,071.32 and 77,077.23

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Solution

The fourth proportional to 189,401.55, 284,071.32 and 77,077.23 is: 115,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,401.55 : 284,071.32 = 77,077.23 : x
  2. Step 2: Convert to fraction form
    189,401.55/284,071.32 = 77,077.23/x
  3. Step 3: Cross multiply
    189,401.55x = 284,071.32 × 77,077.23
  4. Step 4: Simplify right side
    189,401.55x = 21,895,430,468.04
  5. Step 5: Solve for x
    x = 21,895,430,468.04/189,401.55
  6. Step 6: Final answer
    x = 115,603.23

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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.