Home / 137,121.79-205,756.50-136,704.45

Finding the Fourth Proportional to 137,121.79, 205,756.50 and 136,704.45

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Solution

The fourth proportional to 137,121.79, 205,756.50 and 136,704.45 is: 205,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,121.79 : 205,756.50 = 136,704.45 : x
  2. Step 2: Convert to fraction form
    137,121.79/205,756.50 = 136,704.45/x
  3. Step 3: Cross multiply
    137,121.79x = 205,756.50 × 136,704.45
  4. Step 4: Simplify right side
    137,121.79x = 28,127,828,137.64
  5. Step 5: Solve for x
    x = 28,127,828,137.64/137,121.79
  6. Step 6: Final answer
    x = 205,130.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.