Home / 86,264.18-118,408.54-76,621.94

Finding the Fourth Proportional to 86,264.18, 118,408.54 and 76,621.94

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Solution

The fourth proportional to 86,264.18, 118,408.54 and 76,621.94 is: 105,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,264.18 : 118,408.54 = 76,621.94 : x
  2. Step 2: Convert to fraction form
    86,264.18/118,408.54 = 76,621.94/x
  3. Step 3: Cross multiply
    86,264.18x = 118,408.54 × 76,621.94
  4. Step 4: Simplify right side
    86,264.18x = 9,072,692,047.37
  5. Step 5: Solve for x
    x = 9,072,692,047.37/86,264.18
  6. Step 6: Final answer
    x = 105,173.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.