Home / 139,664.30-209,508.80-39,822.35

Finding the Fourth Proportional to 139,664.30, 209,508.80 and 39,822.35

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Solution

The fourth proportional to 139,664.30, 209,508.80 and 39,822.35 is: 59,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,664.30 : 209,508.80 = 39,822.35 : x
  2. Step 2: Convert to fraction form
    139,664.30/209,508.80 = 39,822.35/x
  3. Step 3: Cross multiply
    139,664.30x = 209,508.80 × 39,822.35
  4. Step 4: Simplify right side
    139,664.30x = 8,343,133,385.01
  5. Step 5: Solve for x
    x = 8,343,133,385.01/139,664.30
  6. Step 6: Final answer
    x = 59,737.05

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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.