Home / 213,065.08-294,065.58-128,190.04

Finding the Fourth Proportional to 213,065.08, 294,065.58 and 128,190.04

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Solution

The fourth proportional to 213,065.08, 294,065.58 and 128,190.04 is: 176,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,065.08 : 294,065.58 = 128,190.04 : x
  2. Step 2: Convert to fraction form
    213,065.08/294,065.58 = 128,190.04/x
  3. Step 3: Cross multiply
    213,065.08x = 294,065.58 × 128,190.04
  4. Step 4: Simplify right side
    213,065.08x = 37,696,278,462.82
  5. Step 5: Solve for x
    x = 37,696,278,462.82/213,065.08
  6. Step 6: Final answer
    x = 176,923.78

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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.