Home / 189,921.36-284,681.16-71,541.52

Finding the Fourth Proportional to 189,921.36, 284,681.16 and 71,541.52

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Solution

The fourth proportional to 189,921.36, 284,681.16 and 71,541.52 is: 107,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,921.36 : 284,681.16 = 71,541.52 : x
  2. Step 2: Convert to fraction form
    189,921.36/284,681.16 = 71,541.52/x
  3. Step 3: Cross multiply
    189,921.36x = 284,681.16 × 71,541.52
  4. Step 4: Simplify right side
    189,921.36x = 20,366,522,901.76
  5. Step 5: Solve for x
    x = 20,366,522,901.76/189,921.36
  6. Step 6: Final answer
    x = 107,236.61

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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.