Home / 139,911.35-193,079.02-76,250.51

Finding the Fourth Proportional to 139,911.35, 193,079.02 and 76,250.51

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Solution

The fourth proportional to 139,911.35, 193,079.02 and 76,250.51 is: 105,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,911.35 : 193,079.02 = 76,250.51 : x
  2. Step 2: Convert to fraction form
    139,911.35/193,079.02 = 76,250.51/x
  3. Step 3: Cross multiply
    139,911.35x = 193,079.02 × 76,250.51
  4. Step 4: Simplify right side
    139,911.35x = 14,722,373,745.30
  5. Step 5: Solve for x
    x = 14,722,373,745.30/139,911.35
  6. Step 6: Final answer
    x = 105,226.45

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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.