Home / 128,199.03-192,316.77-39,459.93

Finding the Fourth Proportional to 128,199.03, 192,316.77 and 39,459.93

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Solution

The fourth proportional to 128,199.03, 192,316.77 and 39,459.93 is: 59,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,199.03 : 192,316.77 = 39,459.93 : x
  2. Step 2: Convert to fraction form
    128,199.03/192,316.77 = 39,459.93/x
  3. Step 3: Cross multiply
    128,199.03x = 192,316.77 × 39,459.93
  4. Step 4: Simplify right side
    128,199.03x = 7,588,806,282.03
  5. Step 5: Solve for x
    x = 7,588,806,282.03/128,199.03
  6. Step 6: Final answer
    x = 59,195.50

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1.5x scale

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.