Home / 170,154.47-255,231.78-70,204.86

Finding the Fourth Proportional to 170,154.47, 255,231.78 and 70,204.86

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Solution

The fourth proportional to 170,154.47, 255,231.78 and 70,204.86 is: 105,307.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,154.47 : 255,231.78 = 70,204.86 : x
  2. Step 2: Convert to fraction form
    170,154.47/255,231.78 = 70,204.86/x
  3. Step 3: Cross multiply
    170,154.47x = 255,231.78 × 70,204.86
  4. Step 4: Simplify right side
    170,154.47x = 17,918,511,119.18
  5. Step 5: Solve for x
    x = 17,918,511,119.18/170,154.47
  6. Step 6: Final answer
    x = 105,307.32

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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.