Home / 139,239.02-192,144.71-75,575.45

Finding the Fourth Proportional to 139,239.02, 192,144.71 and 75,575.45

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Solution

The fourth proportional to 139,239.02, 192,144.71 and 75,575.45 is: 104,291.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,239.02 : 192,144.71 = 75,575.45 : x
  2. Step 2: Convert to fraction form
    139,239.02/192,144.71 = 75,575.45/x
  3. Step 3: Cross multiply
    139,239.02x = 192,144.71 × 75,575.45
  4. Step 4: Simplify right side
    139,239.02x = 14,521,421,584.77
  5. Step 5: Solve for x
    x = 14,521,421,584.77/139,239.02
  6. Step 6: Final answer
    x = 104,291.33

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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.