Home / 128,196.43-192,312.87-39,457.33

Finding the Fourth Proportional to 128,196.43, 192,312.87 and 39,457.33

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Solution

The fourth proportional to 128,196.43, 192,312.87 and 39,457.33 is: 59,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,196.43 : 192,312.87 = 39,457.33 : x
  2. Step 2: Convert to fraction form
    128,196.43/192,312.87 = 39,457.33/x
  3. Step 3: Cross multiply
    128,196.43x = 192,312.87 × 39,457.33
  4. Step 4: Simplify right side
    128,196.43x = 7,588,152,374.84
  5. Step 5: Solve for x
    x = 7,588,152,374.84/128,196.43
  6. Step 6: Final answer
    x = 59,191.60

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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.