Home / 136,065.18-187,704.63-117,169.50

Finding the Fourth Proportional to 136,065.18, 187,704.63 and 117,169.50

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Solution

The fourth proportional to 136,065.18, 187,704.63 and 117,169.50 is: 161,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,065.18 : 187,704.63 = 117,169.50 : x
  2. Step 2: Convert to fraction form
    136,065.18/187,704.63 = 117,169.50/x
  3. Step 3: Cross multiply
    136,065.18x = 187,704.63 × 117,169.50
  4. Step 4: Simplify right side
    136,065.18x = 21,993,257,644.79
  5. Step 5: Solve for x
    x = 21,993,257,644.79/136,065.18
  6. Step 6: Final answer
    x = 161,637.66

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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.