Home / 202,106.10-278,908.62-111,465.90

Finding the Fourth Proportional to 202,106.10, 278,908.62 and 111,465.90

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Solution

The fourth proportional to 202,106.10, 278,908.62 and 111,465.90 is: 153,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,106.10 : 278,908.62 = 111,465.90 : x
  2. Step 2: Convert to fraction form
    202,106.10/278,908.62 = 111,465.90/x
  3. Step 3: Cross multiply
    202,106.10x = 278,908.62 × 111,465.90
  4. Step 4: Simplify right side
    202,106.10x = 31,088,800,346.06
  5. Step 5: Solve for x
    x = 31,088,800,346.06/202,106.10
  6. Step 6: Final answer
    x = 153,824.16

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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.