Home / 142,178.37-213,234.75-53,440.85

Finding the Fourth Proportional to 142,178.37, 213,234.75 and 53,440.85

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Solution

The fourth proportional to 142,178.37, 213,234.75 and 53,440.85 is: 80,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,178.37 : 213,234.75 = 53,440.85 : x
  2. Step 2: Convert to fraction form
    142,178.37/213,234.75 = 53,440.85/x
  3. Step 3: Cross multiply
    142,178.37x = 213,234.75 × 53,440.85
  4. Step 4: Simplify right side
    142,178.37x = 11,395,445,223.36
  5. Step 5: Solve for x
    x = 11,395,445,223.36/142,178.37
  6. Step 6: Final answer
    x = 80,148.94

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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.