Home / 189,938.44-284,973.18-71,643.64

Finding the Fourth Proportional to 189,938.44, 284,973.18 and 71,643.64

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Solution

The fourth proportional to 189,938.44, 284,973.18 and 71,643.64 is: 107,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,938.44 : 284,973.18 = 71,643.64 : x
  2. Step 2: Convert to fraction form
    189,938.44/284,973.18 = 71,643.64/x
  3. Step 3: Cross multiply
    189,938.44x = 284,973.18 × 71,643.64
  4. Step 4: Simplify right side
    189,938.44x = 20,416,515,917.58
  5. Step 5: Solve for x
    x = 20,416,515,917.58/189,938.44
  6. Step 6: Final answer
    x = 107,490.17

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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.