Home / 128,337.89-192,346.45-61,760.14

Finding the Fourth Proportional to 128,337.89, 192,346.45 and 61,760.14

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Solution

The fourth proportional to 128,337.89, 192,346.45 and 61,760.14 is: 92,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,337.89 : 192,346.45 = 61,760.14 : x
  2. Step 2: Convert to fraction form
    128,337.89/192,346.45 = 61,760.14/x
  3. Step 3: Cross multiply
    128,337.89x = 192,346.45 × 61,760.14
  4. Step 4: Simplify right side
    128,337.89x = 11,879,343,045.24
  5. Step 5: Solve for x
    x = 11,879,343,045.24/128,337.89
  6. Step 6: Final answer
    x = 92,563.03

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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.