Home / 103,639.90-154,703.14-88,943.26

Finding the Fourth Proportional to 103,639.90, 154,703.14 and 88,943.26

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Solution

The fourth proportional to 103,639.90, 154,703.14 and 88,943.26 is: 132,765.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.90 : 154,703.14 = 88,943.26 : x
  2. Step 2: Convert to fraction form
    103,639.90/154,703.14 = 88,943.26/x
  3. Step 3: Cross multiply
    103,639.90x = 154,703.14 × 88,943.26
  4. Step 4: Simplify right side
    103,639.90x = 13,759,801,603.84
  5. Step 5: Solve for x
    x = 13,759,801,603.84/103,639.90
  6. Step 6: Final answer
    x = 132,765.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.