Home / 105,081.10-157,512.30-57,623.20

Finding the Fourth Proportional to 105,081.10, 157,512.30 and 57,623.20

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Solution

The fourth proportional to 105,081.10, 157,512.30 and 57,623.20 is: 86,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,081.10 : 157,512.30 = 57,623.20 : x
  2. Step 2: Convert to fraction form
    105,081.10/157,512.30 = 57,623.20/x
  3. Step 3: Cross multiply
    105,081.10x = 157,512.30 × 57,623.20
  4. Step 4: Simplify right side
    105,081.10x = 9,076,362,765.36
  5. Step 5: Solve for x
    x = 9,076,362,765.36/105,081.10
  6. Step 6: Final answer
    x = 86,374.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.