Home / 190,109.43-284,898.15-126,142.74

Finding the Fourth Proportional to 190,109.43, 284,898.15 and 126,142.74

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Solution

The fourth proportional to 190,109.43, 284,898.15 and 126,142.74 is: 189,037.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,109.43 : 284,898.15 = 126,142.74 : x
  2. Step 2: Convert to fraction form
    190,109.43/284,898.15 = 126,142.74/x
  3. Step 3: Cross multiply
    190,109.43x = 284,898.15 × 126,142.74
  4. Step 4: Simplify right side
    190,109.43x = 35,937,833,261.93
  5. Step 5: Solve for x
    x = 35,937,833,261.93/190,109.43
  6. Step 6: Final answer
    x = 189,037.62

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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.