Home / 202,560.47-279,445.64-121,941.30

Finding the Fourth Proportional to 202,560.47, 279,445.64 and 121,941.30

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Solution

The fourth proportional to 202,560.47, 279,445.64 and 121,941.30 is: 168,226.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,560.47 : 279,445.64 = 121,941.30 : x
  2. Step 2: Convert to fraction form
    202,560.47/279,445.64 = 121,941.30/x
  3. Step 3: Cross multiply
    202,560.47x = 279,445.64 × 121,941.30
  4. Step 4: Simplify right side
    202,560.47x = 34,075,964,620.93
  5. Step 5: Solve for x
    x = 34,075,964,620.93/202,560.47
  6. Step 6: Final answer
    x = 168,226.13

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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.