Home / 130,401.93-179,930.30-76,667.34

Finding the Fourth Proportional to 130,401.93, 179,930.30 and 76,667.34

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Solution

The fourth proportional to 130,401.93, 179,930.30 and 76,667.34 is: 105,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,401.93 : 179,930.30 = 76,667.34 : x
  2. Step 2: Convert to fraction form
    130,401.93/179,930.30 = 76,667.34/x
  3. Step 3: Cross multiply
    130,401.93x = 179,930.30 × 76,667.34
  4. Step 4: Simplify right side
    130,401.93x = 13,794,776,583.08
  5. Step 5: Solve for x
    x = 13,794,776,583.08/130,401.93
  6. Step 6: Final answer
    x = 105,786.60

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1.5x scale

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.