Home / 202,492.31-279,438.05-111,854.12

Finding the Fourth Proportional to 202,492.31, 279,438.05 and 111,854.12

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Solution

The fourth proportional to 202,492.31, 279,438.05 and 111,854.12 is: 154,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,492.31 : 279,438.05 = 111,854.12 : x
  2. Step 2: Convert to fraction form
    202,492.31/279,438.05 = 111,854.12/x
  3. Step 3: Cross multiply
    202,492.31x = 279,438.05 × 111,854.12
  4. Step 4: Simplify right side
    202,492.31x = 31,256,296,059.71
  5. Step 5: Solve for x
    x = 31,256,296,059.71/202,492.31
  6. Step 6: Final answer
    x = 154,357.94

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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.