Home / 130,667.96-180,255.30-76,950.38

Finding the Fourth Proportional to 130,667.96, 180,255.30 and 76,950.38

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Solution

The fourth proportional to 130,667.96, 180,255.30 and 76,950.38 is: 106,152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,667.96 : 180,255.30 = 76,950.38 : x
  2. Step 2: Convert to fraction form
    130,667.96/180,255.30 = 76,950.38/x
  3. Step 3: Cross multiply
    130,667.96x = 180,255.30 × 76,950.38
  4. Step 4: Simplify right side
    130,667.96x = 13,870,713,832.01
  5. Step 5: Solve for x
    x = 13,870,713,832.01/130,667.96
  6. Step 6: Final answer
    x = 106,152.37

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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.