Home / 140,647.74-210,825.81-87,936.18

Finding the Fourth Proportional to 140,647.74, 210,825.81 and 87,936.18

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Solution

The fourth proportional to 140,647.74, 210,825.81 and 87,936.18 is: 131,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,647.74 : 210,825.81 = 87,936.18 : x
  2. Step 2: Convert to fraction form
    140,647.74/210,825.81 = 87,936.18/x
  3. Step 3: Cross multiply
    140,647.74x = 210,825.81 × 87,936.18
  4. Step 4: Simplify right side
    140,647.74x = 18,539,216,376.81
  5. Step 5: Solve for x
    x = 18,539,216,376.81/140,647.74
  6. Step 6: Final answer
    x = 131,813.11

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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.