Home / 139,421.30-192,402.61-75,759.10

Finding the Fourth Proportional to 139,421.30, 192,402.61 and 75,759.10

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Solution

The fourth proportional to 139,421.30, 192,402.61 and 75,759.10 is: 104,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,421.30 : 192,402.61 = 75,759.10 : x
  2. Step 2: Convert to fraction form
    139,421.30/192,402.61 = 75,759.10/x
  3. Step 3: Cross multiply
    139,421.30x = 192,402.61 × 75,759.10
  4. Step 4: Simplify right side
    139,421.30x = 14,576,248,571.25
  5. Step 5: Solve for x
    x = 14,576,248,571.25/139,421.30
  6. Step 6: Final answer
    x = 104,548.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.