Home / 139,820.58-192,955.37-76,158.23

Finding the Fourth Proportional to 139,820.58, 192,955.37 and 76,158.23

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Solution

The fourth proportional to 139,820.58, 192,955.37 and 76,158.23 is: 105,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,820.58 : 192,955.37 = 76,158.23 : x
  2. Step 2: Convert to fraction form
    139,820.58/192,955.37 = 76,158.23/x
  3. Step 3: Cross multiply
    139,820.58x = 192,955.37 × 76,158.23
  4. Step 4: Simplify right side
    139,820.58x = 14,695,138,102.63
  5. Step 5: Solve for x
    x = 14,695,138,102.63/139,820.58
  6. Step 6: Final answer
    x = 105,099.97

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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.