Home / 137,120.05-205,705.82-62,245.45

Finding the Fourth Proportional to 137,120.05, 205,705.82 and 62,245.45

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Solution

The fourth proportional to 137,120.05, 205,705.82 and 62,245.45 is: 93,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,120.05 : 205,705.82 = 62,245.45 : x
  2. Step 2: Convert to fraction form
    137,120.05/205,705.82 = 62,245.45/x
  3. Step 3: Cross multiply
    137,120.05x = 205,705.82 × 62,245.45
  4. Step 4: Simplify right side
    137,120.05x = 12,804,249,993.76
  5. Step 5: Solve for x
    x = 12,804,249,993.76/137,120.05
  6. Step 6: Final answer
    x = 93,379.86

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1.5x scale

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.