Home / 142,778.30-214,112.08-76,182.09

Finding the Fourth Proportional to 142,778.30, 214,112.08 and 76,182.09

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Solution

The fourth proportional to 142,778.30, 214,112.08 and 76,182.09 is: 114,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,778.30 : 214,112.08 = 76,182.09 : x
  2. Step 2: Convert to fraction form
    142,778.30/214,112.08 = 76,182.09/x
  3. Step 3: Cross multiply
    142,778.30x = 214,112.08 × 76,182.09
  4. Step 4: Simplify right side
    142,778.30x = 16,311,507,061.79
  5. Step 5: Solve for x
    x = 16,311,507,061.79/142,778.30
  6. Step 6: Final answer
    x = 114,243.60

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1.5x scale

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.