Home / 145,667.22-218,522.34-74,630.04

Finding the Fourth Proportional to 145,667.22, 218,522.34 and 74,630.04

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Solution

The fourth proportional to 145,667.22, 218,522.34 and 74,630.04 is: 111,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,667.22 : 218,522.34 = 74,630.04 : x
  2. Step 2: Convert to fraction form
    145,667.22/218,522.34 = 74,630.04/x
  3. Step 3: Cross multiply
    145,667.22x = 218,522.34 × 74,630.04
  4. Step 4: Simplify right side
    145,667.22x = 16,308,330,975.09
  5. Step 5: Solve for x
    x = 16,308,330,975.09/145,667.22
  6. Step 6: Final answer
    x = 111,956.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.