Home / 139,006.08-191,676.24-103,262.40

Finding the Fourth Proportional to 139,006.08, 191,676.24 and 103,262.40

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Solution

The fourth proportional to 139,006.08, 191,676.24 and 103,262.40 is: 142,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,006.08 : 191,676.24 = 103,262.40 : x
  2. Step 2: Convert to fraction form
    139,006.08/191,676.24 = 103,262.40/x
  3. Step 3: Cross multiply
    139,006.08x = 191,676.24 × 103,262.40
  4. Step 4: Simplify right side
    139,006.08x = 19,792,948,565.38
  5. Step 5: Solve for x
    x = 19,792,948,565.38/139,006.08
  6. Step 6: Final answer
    x = 142,389.09

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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.