Home / 189,881.79-284,573.52-139,727.04

Finding the Fourth Proportional to 189,881.79, 284,573.52 and 139,727.04

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Solution

The fourth proportional to 189,881.79, 284,573.52 and 139,727.04 is: 209,407.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,881.79 : 284,573.52 = 139,727.04 : x
  2. Step 2: Convert to fraction form
    189,881.79/284,573.52 = 139,727.04/x
  3. Step 3: Cross multiply
    189,881.79x = 284,573.52 × 139,727.04
  4. Step 4: Simplify right side
    189,881.79x = 39,762,615,611.98
  5. Step 5: Solve for x
    x = 39,762,615,611.98/189,881.79
  6. Step 6: Final answer
    x = 209,407.21

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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.