Home / 139,632.21-192,689.55-75,970.26

Finding the Fourth Proportional to 139,632.21, 192,689.55 and 75,970.26

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Solution

The fourth proportional to 139,632.21, 192,689.55 and 75,970.26 is: 104,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,632.21 : 192,689.55 = 75,970.26 : x
  2. Step 2: Convert to fraction form
    139,632.21/192,689.55 = 75,970.26/x
  3. Step 3: Cross multiply
    139,632.21x = 192,689.55 × 75,970.26
  4. Step 4: Simplify right side
    139,632.21x = 14,638,675,212.78
  5. Step 5: Solve for x
    x = 14,638,675,212.78/139,632.21
  6. Step 6: Final answer
    x = 104,837.38

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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.