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Finding the Fourth Proportional to 158,396, 218,580.08 and 94,768.80

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Solution

The fourth proportional to 158,396, 218,580.08 and 94,768.80 is: 130,777.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,396 : 218,580.08 = 94,768.80 : x
  2. Step 2: Convert to fraction form
    158,396/218,580.08 = 94,768.80/x
  3. Step 3: Cross multiply
    158,396x = 218,580.08 × 94,768.80
  4. Step 4: Simplify right side
    158,396x = 20,714,571,885.50
  5. Step 5: Solve for x
    x = 20,714,571,885.50/158,396
  6. Step 6: Final answer
    x = 130,777.11

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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.