Home / 158,348.26-218,512.47-86,714.43

Finding the Fourth Proportional to 158,348.26, 218,512.47 and 86,714.43

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Solution

The fourth proportional to 158,348.26, 218,512.47 and 86,714.43 is: 119,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,348.26 : 218,512.47 = 86,714.43 : x
  2. Step 2: Convert to fraction form
    158,348.26/218,512.47 = 86,714.43/x
  3. Step 3: Cross multiply
    158,348.26x = 218,512.47 × 86,714.43
  4. Step 4: Simplify right side
    158,348.26x = 18,948,184,283.94
  5. Step 5: Solve for x
    x = 18,948,184,283.94/158,348.26
  6. Step 6: Final answer
    x = 119,661.46

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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.