Home / 202,567.12-279,537.96-111,918.40

Finding the Fourth Proportional to 202,567.12, 279,537.96 and 111,918.40

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Solution

The fourth proportional to 202,567.12, 279,537.96 and 111,918.40 is: 154,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,567.12 : 279,537.96 = 111,918.40 : x
  2. Step 2: Convert to fraction form
    202,567.12/279,537.96 = 111,918.40/x
  3. Step 3: Cross multiply
    202,567.12x = 279,537.96 × 111,918.40
  4. Step 4: Simplify right side
    202,567.12x = 31,285,441,222.46
  5. Step 5: Solve for x
    x = 31,285,441,222.46/202,567.12
  6. Step 6: Final answer
    x = 154,444.81

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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.