Home / 235,519.66-325,013.94-128,087.38

Finding the Fourth Proportional to 235,519.66, 325,013.94 and 128,087.38

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Solution

The fourth proportional to 235,519.66, 325,013.94 and 128,087.38 is: 176,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,519.66 : 325,013.94 = 128,087.38 : x
  2. Step 2: Convert to fraction form
    235,519.66/325,013.94 = 128,087.38/x
  3. Step 3: Cross multiply
    235,519.66x = 325,013.94 × 128,087.38
  4. Step 4: Simplify right side
    235,519.66x = 41,630,184,038.08
  5. Step 5: Solve for x
    x = 41,630,184,038.08/235,519.66
  6. Step 6: Final answer
    x = 176,758.85

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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.