Home / 138,852.04-191,615.94-75,189.94

Finding the Fourth Proportional to 138,852.04, 191,615.94 and 75,189.94

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Solution

The fourth proportional to 138,852.04, 191,615.94 and 75,189.94 is: 103,762.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,852.04 : 191,615.94 = 75,189.94 : x
  2. Step 2: Convert to fraction form
    138,852.04/191,615.94 = 75,189.94/x
  3. Step 3: Cross multiply
    138,852.04x = 191,615.94 × 75,189.94
  4. Step 4: Simplify right side
    138,852.04x = 14,407,591,031.64
  5. Step 5: Solve for x
    x = 14,407,591,031.64/138,852.04
  6. Step 6: Final answer
    x = 103,762.18

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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.