Home / 124,690.81-187,093.73-77,361.50

Finding the Fourth Proportional to 124,690.81, 187,093.73 and 77,361.50

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Solution

The fourth proportional to 124,690.81, 187,093.73 and 77,361.50 is: 116,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,690.81 : 187,093.73 = 77,361.50 : x
  2. Step 2: Convert to fraction form
    124,690.81/187,093.73 = 77,361.50/x
  3. Step 3: Cross multiply
    124,690.81x = 187,093.73 × 77,361.50
  4. Step 4: Simplify right side
    124,690.81x = 14,473,850,738.85
  5. Step 5: Solve for x
    x = 14,473,850,738.85/124,690.81
  6. Step 6: Final answer
    x = 116,077.93

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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.