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Finding the Fourth Proportional to 139,777.33, 209,706.86 and 45,005.41

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Solution

The fourth proportional to 139,777.33, 209,706.86 and 45,005.41 is: 67,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,777.33 : 209,706.86 = 45,005.41 : x
  2. Step 2: Convert to fraction form
    139,777.33/209,706.86 = 45,005.41/x
  3. Step 3: Cross multiply
    139,777.33x = 209,706.86 × 45,005.41
  4. Step 4: Simplify right side
    139,777.33x = 9,437,943,214.11
  5. Step 5: Solve for x
    x = 9,437,943,214.11/139,777.33
  6. Step 6: Final answer
    x = 67,521.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.