Home / 138,756.06-191,483.35-75,093.87

Finding the Fourth Proportional to 138,756.06, 191,483.35 and 75,093.87

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Solution

The fourth proportional to 138,756.06, 191,483.35 and 75,093.87 is: 103,629.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,756.06 : 191,483.35 = 75,093.87 : x
  2. Step 2: Convert to fraction form
    138,756.06/191,483.35 = 75,093.87/x
  3. Step 3: Cross multiply
    138,756.06x = 191,483.35 × 75,093.87
  4. Step 4: Simplify right side
    138,756.06x = 14,379,225,792.06
  5. Step 5: Solve for x
    x = 14,379,225,792.06/138,756.06
  6. Step 6: Final answer
    x = 103,629.53

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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.