Home / 138,252.89-190,785.85-76,998.67

Finding the Fourth Proportional to 138,252.89, 190,785.85 and 76,998.67

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Solution

The fourth proportional to 138,252.89, 190,785.85 and 76,998.67 is: 106,256.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,252.89 : 190,785.85 = 76,998.67 : x
  2. Step 2: Convert to fraction form
    138,252.89/190,785.85 = 76,998.67/x
  3. Step 3: Cross multiply
    138,252.89x = 190,785.85 × 76,998.67
  4. Step 4: Simplify right side
    138,252.89x = 14,690,255,894.19
  5. Step 5: Solve for x
    x = 14,690,255,894.19/138,252.89
  6. Step 6: Final answer
    x = 106,256.41

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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.