Home / 153,950.24-212,450.64-86,881.76

Finding the Fourth Proportional to 153,950.24, 212,450.64 and 86,881.76

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Solution

The fourth proportional to 153,950.24, 212,450.64 and 86,881.76 is: 119,896.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,950.24 : 212,450.64 = 86,881.76 : x
  2. Step 2: Convert to fraction form
    153,950.24/212,450.64 = 86,881.76/x
  3. Step 3: Cross multiply
    153,950.24x = 212,450.64 × 86,881.76
  4. Step 4: Simplify right side
    153,950.24x = 18,458,085,516.33
  5. Step 5: Solve for x
    x = 18,458,085,516.33/153,950.24
  6. Step 6: Final answer
    x = 119,896.44

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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.