Home / 103,867.62-143,347.44-61,439.82

Finding the Fourth Proportional to 103,867.62, 143,347.44 and 61,439.82

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Solution

The fourth proportional to 103,867.62, 143,347.44 and 61,439.82 is: 84,792.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,867.62 : 143,347.44 = 61,439.82 : x
  2. Step 2: Convert to fraction form
    103,867.62/143,347.44 = 61,439.82/x
  3. Step 3: Cross multiply
    103,867.62x = 143,347.44 × 61,439.82
  4. Step 4: Simplify right side
    103,867.62x = 8,807,240,603.86
  5. Step 5: Solve for x
    x = 8,807,240,603.86/103,867.62
  6. Step 6: Final answer
    x = 84,792.94

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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.