Home / 189,632.80-284,451.02-77,290.25

Finding the Fourth Proportional to 189,632.80, 284,451.02 and 77,290.25

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Solution

The fourth proportional to 189,632.80, 284,451.02 and 77,290.25 is: 115,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,632.80 : 284,451.02 = 77,290.25 : x
  2. Step 2: Convert to fraction form
    189,632.80/284,451.02 = 77,290.25/x
  3. Step 3: Cross multiply
    189,632.80x = 284,451.02 × 77,290.25
  4. Step 4: Simplify right side
    189,632.80x = 21,985,290,062.10
  5. Step 5: Solve for x
    x = 21,985,290,062.10/189,632.80
  6. Step 6: Final answer
    x = 115,936.12

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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.