Home / 105,076.93-145,003.26-57,330.25

Finding the Fourth Proportional to 105,076.93, 145,003.26 and 57,330.25

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Solution

The fourth proportional to 105,076.93, 145,003.26 and 57,330.25 is: 79,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,076.93 : 145,003.26 = 57,330.25 : x
  2. Step 2: Convert to fraction form
    105,076.93/145,003.26 = 57,330.25/x
  3. Step 3: Cross multiply
    105,076.93x = 145,003.26 × 57,330.25
  4. Step 4: Simplify right side
    105,076.93x = 8,313,073,146.62
  5. Step 5: Solve for x
    x = 8,313,073,146.62/105,076.93
  6. Step 6: Final answer
    x = 79,114.16

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1.5x scale

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.