Home / 158,360.45-218,537.48-86,743.05

Finding the Fourth Proportional to 158,360.45, 218,537.48 and 86,743.05

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Solution

The fourth proportional to 158,360.45, 218,537.48 and 86,743.05 is: 119,705.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,360.45 : 218,537.48 = 86,743.05 : x
  2. Step 2: Convert to fraction form
    158,360.45/218,537.48 = 86,743.05/x
  3. Step 3: Cross multiply
    158,360.45x = 218,537.48 × 86,743.05
  4. Step 4: Simplify right side
    158,360.45x = 18,956,607,120.80
  5. Step 5: Solve for x
    x = 18,956,607,120.80/158,360.45
  6. Step 6: Final answer
    x = 119,705.44

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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.