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Finding the Fourth Proportional to 158,356, 218,524.88 and 94,728.96

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Solution

The fourth proportional to 158,356, 218,524.88 and 94,728.96 is: 130,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,356 : 218,524.88 = 94,728.96 : x
  2. Step 2: Convert to fraction form
    158,356/218,524.88 = 94,728.96/x
  3. Step 3: Cross multiply
    158,356x = 218,524.88 × 94,728.96
  4. Step 4: Simplify right side
    158,356x = 20,700,634,616.52
  5. Step 5: Solve for x
    x = 20,700,634,616.52/158,356
  6. Step 6: Final answer
    x = 130,722.14

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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.