Home / 211,645.36-292,083.72-139,900.96

Finding the Fourth Proportional to 211,645.36, 292,083.72 and 139,900.96

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Solution

The fourth proportional to 211,645.36, 292,083.72 and 139,900.96 is: 193,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,645.36 : 292,083.72 = 139,900.96 : x
  2. Step 2: Convert to fraction form
    211,645.36/292,083.72 = 139,900.96/x
  3. Step 3: Cross multiply
    211,645.36x = 292,083.72 × 139,900.96
  4. Step 4: Simplify right side
    211,645.36x = 40,862,792,828.37
  5. Step 5: Solve for x
    x = 40,862,792,828.37/211,645.36
  6. Step 6: Final answer
    x = 193,072.00

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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.