Home / 141,785.06-212,708.10-70,745.90

Finding the Fourth Proportional to 141,785.06, 212,708.10 and 70,745.90

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Solution

The fourth proportional to 141,785.06, 212,708.10 and 70,745.90 is: 106,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,785.06 : 212,708.10 = 70,745.90 : x
  2. Step 2: Convert to fraction form
    141,785.06/212,708.10 = 70,745.90/x
  3. Step 3: Cross multiply
    141,785.06x = 212,708.10 × 70,745.90
  4. Step 4: Simplify right side
    141,785.06x = 15,048,225,971.79
  5. Step 5: Solve for x
    x = 15,048,225,971.79/141,785.06
  6. Step 6: Final answer
    x = 106,134.07

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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.