Home / 190,988.50-263,548.70-110,421.21

Finding the Fourth Proportional to 190,988.50, 263,548.70 and 110,421.21

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Solution

The fourth proportional to 190,988.50, 263,548.70 and 110,421.21 is: 152,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,988.50 : 263,548.70 = 110,421.21 : x
  2. Step 2: Convert to fraction form
    190,988.50/263,548.70 = 110,421.21/x
  3. Step 3: Cross multiply
    190,988.50x = 263,548.70 × 110,421.21
  4. Step 4: Simplify right side
    190,988.50x = 29,101,365,795.82
  5. Step 5: Solve for x
    x = 29,101,365,795.82/190,988.50
  6. Step 6: Final answer
    x = 152,372.35

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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.