Home / 202,804.90-279,895.10-117,921.96

Finding the Fourth Proportional to 202,804.90, 279,895.10 and 117,921.96

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Solution

The fourth proportional to 202,804.90, 279,895.10 and 117,921.96 is: 162,746.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,804.90 : 279,895.10 = 117,921.96 : x
  2. Step 2: Convert to fraction form
    202,804.90/279,895.10 = 117,921.96/x
  3. Step 3: Cross multiply
    202,804.90x = 279,895.10 × 117,921.96
  4. Step 4: Simplify right side
    202,804.90x = 33,005,778,196.79
  5. Step 5: Solve for x
    x = 33,005,778,196.79/202,804.90
  6. Step 6: Final answer
    x = 162,746.46

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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.