Home / 139,664.55-209,509.18-39,822.60

Finding the Fourth Proportional to 139,664.55, 209,509.18 and 39,822.60

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Solution

The fourth proportional to 139,664.55, 209,509.18 and 39,822.60 is: 59,737.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,664.55 : 209,509.18 = 39,822.60 : x
  2. Step 2: Convert to fraction form
    139,664.55/209,509.18 = 39,822.60/x
  3. Step 3: Cross multiply
    139,664.55x = 209,509.18 × 39,822.60
  4. Step 4: Simplify right side
    139,664.55x = 8,343,200,271.47
  5. Step 5: Solve for x
    x = 8,343,200,271.47/139,664.55
  6. Step 6: Final answer
    x = 59,737.42

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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.