Home / 138,717.50-191,409.63-84,241.34

Finding the Fourth Proportional to 138,717.50, 191,409.63 and 84,241.34

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Solution

The fourth proportional to 138,717.50, 191,409.63 and 84,241.34 is: 116,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,717.50 : 191,409.63 = 84,241.34 : x
  2. Step 2: Convert to fraction form
    138,717.50/191,409.63 = 84,241.34/x
  3. Step 3: Cross multiply
    138,717.50x = 191,409.63 × 84,241.34
  4. Step 4: Simplify right side
    138,717.50x = 16,124,604,198.63
  5. Step 5: Solve for x
    x = 16,124,604,198.63/138,717.50
  6. Step 6: Final answer
    x = 116,240.59

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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.