Home / 141,783.48-195,483.78-90,712.44

Finding the Fourth Proportional to 141,783.48, 195,483.78 and 90,712.44

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Solution

The fourth proportional to 141,783.48, 195,483.78 and 90,712.44 is: 125,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,783.48 : 195,483.78 = 90,712.44 : x
  2. Step 2: Convert to fraction form
    141,783.48/195,483.78 = 90,712.44/x
  3. Step 3: Cross multiply
    141,783.48x = 195,483.78 × 90,712.44
  4. Step 4: Simplify right side
    141,783.48x = 17,732,810,664.22
  5. Step 5: Solve for x
    x = 17,732,810,664.22/141,783.48
  6. Step 6: Final answer
    x = 125,069.65

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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.