Home / 137,981.33-190,414.77-77,554.52

Finding the Fourth Proportional to 137,981.33, 190,414.77 and 77,554.52

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Solution

The fourth proportional to 137,981.33, 190,414.77 and 77,554.52 is: 107,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,981.33 : 190,414.77 = 77,554.52 : x
  2. Step 2: Convert to fraction form
    137,981.33/190,414.77 = 77,554.52/x
  3. Step 3: Cross multiply
    137,981.33x = 190,414.77 × 77,554.52
  4. Step 4: Simplify right side
    137,981.33x = 14,767,526,088.26
  5. Step 5: Solve for x
    x = 14,767,526,088.26/137,981.33
  6. Step 6: Final answer
    x = 107,025.54

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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.