Home / 142,739.08-214,113.48-67,820.56

Finding the Fourth Proportional to 142,739.08, 214,113.48 and 67,820.56

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Solution

The fourth proportional to 142,739.08, 214,113.48 and 67,820.56 is: 101,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,739.08 : 214,113.48 = 67,820.56 : x
  2. Step 2: Convert to fraction form
    142,739.08/214,113.48 = 67,820.56/x
  3. Step 3: Cross multiply
    142,739.08x = 214,113.48 × 67,820.56
  4. Step 4: Simplify right side
    142,739.08x = 14,521,296,117.15
  5. Step 5: Solve for x
    x = 14,521,296,117.15/142,739.08
  6. Step 6: Final answer
    x = 101,733.15

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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.