Home / 189,530.99-284,051.07-77,080.58

Finding the Fourth Proportional to 189,530.99, 284,051.07 and 77,080.58

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Solution

The fourth proportional to 189,530.99, 284,051.07 and 77,080.58 is: 115,521.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,530.99 : 284,051.07 = 77,080.58 : x
  2. Step 2: Convert to fraction form
    189,530.99/284,051.07 = 77,080.58/x
  3. Step 3: Cross multiply
    189,530.99x = 284,051.07 × 77,080.58
  4. Step 4: Simplify right side
    189,530.99x = 21,894,822,418.44
  5. Step 5: Solve for x
    x = 21,894,822,418.44/189,530.99
  6. Step 6: Final answer
    x = 115,521.07

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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.