Home / 216,165.19-298,303-120,680.77

Finding the Fourth Proportional to 216,165.19, 298,303 and 120,680.77

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Solution

The fourth proportional to 216,165.19, 298,303 and 120,680.77 is: 166,536.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,165.19 : 298,303 = 120,680.77 : x
  2. Step 2: Convert to fraction form
    216,165.19/298,303 = 120,680.77/x
  3. Step 3: Cross multiply
    216,165.19x = 298,303 × 120,680.77
  4. Step 4: Simplify right side
    216,165.19x = 35,999,435,733.31
  5. Step 5: Solve for x
    x = 35,999,435,733.31/216,165.19
  6. Step 6: Final answer
    x = 166,536.69

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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.