Home / 154,558.38-213,293.27-86,574.78

Finding the Fourth Proportional to 154,558.38, 213,293.27 and 86,574.78

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Solution

The fourth proportional to 154,558.38, 213,293.27 and 86,574.78 is: 119,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,558.38 : 213,293.27 = 86,574.78 : x
  2. Step 2: Convert to fraction form
    154,558.38/213,293.27 = 86,574.78/x
  3. Step 3: Cross multiply
    154,558.38x = 213,293.27 × 86,574.78
  4. Step 4: Simplify right side
    154,558.38x = 18,465,817,925.73
  5. Step 5: Solve for x
    x = 18,465,817,925.73/154,558.38
  6. Step 6: Final answer
    x = 119,474.71

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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.