Home / 155,638.46-233,512.88-76,808.05

Finding the Fourth Proportional to 155,638.46, 233,512.88 and 76,808.05

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Solution

The fourth proportional to 155,638.46, 233,512.88 and 76,808.05 is: 115,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,638.46 : 233,512.88 = 76,808.05 : x
  2. Step 2: Convert to fraction form
    155,638.46/233,512.88 = 76,808.05/x
  3. Step 3: Cross multiply
    155,638.46x = 233,512.88 × 76,808.05
  4. Step 4: Simplify right side
    155,638.46x = 17,935,667,994.86
  5. Step 5: Solve for x
    x = 17,935,667,994.86/155,638.46
  6. Step 6: Final answer
    x = 115,239.30

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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.