Home / 158,765.26-219,094.19-86,168.28

Finding the Fourth Proportional to 158,765.26, 219,094.19 and 86,168.28

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Solution

The fourth proportional to 158,765.26, 219,094.19 and 86,168.28 is: 118,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,765.26 : 219,094.19 = 86,168.28 : x
  2. Step 2: Convert to fraction form
    158,765.26/219,094.19 = 86,168.28/x
  3. Step 3: Cross multiply
    158,765.26x = 219,094.19 × 86,168.28
  4. Step 4: Simplify right side
    158,765.26x = 18,878,968,904.11
  5. Step 5: Solve for x
    x = 18,878,968,904.11/158,765.26
  6. Step 6: Final answer
    x = 118,911.21

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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.