Home / 202,329.17-279,214.31-111,685.19

Finding the Fourth Proportional to 202,329.17, 279,214.31 and 111,685.19

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Solution

The fourth proportional to 202,329.17, 279,214.31 and 111,685.19 is: 154,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,329.17 : 279,214.31 = 111,685.19 : x
  2. Step 2: Convert to fraction form
    202,329.17/279,214.31 = 111,685.19/x
  3. Step 3: Cross multiply
    202,329.17x = 279,214.31 × 111,685.19
  4. Step 4: Simplify right side
    202,329.17x = 31,184,104,240.32
  5. Step 5: Solve for x
    x = 31,184,104,240.32/202,329.17
  6. Step 6: Final answer
    x = 154,125.60

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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.