Home / 139,420.14-209,012.67-60,474.93

Finding the Fourth Proportional to 139,420.14, 209,012.67 and 60,474.93

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Solution

The fourth proportional to 139,420.14, 209,012.67 and 60,474.93 is: 90,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,420.14 : 209,012.67 = 60,474.93 : x
  2. Step 2: Convert to fraction form
    139,420.14/209,012.67 = 60,474.93/x
  3. Step 3: Cross multiply
    139,420.14x = 209,012.67 × 60,474.93
  4. Step 4: Simplify right side
    139,420.14x = 12,640,026,587.36
  5. Step 5: Solve for x
    x = 12,640,026,587.36/139,420.14
  6. Step 6: Final answer
    x = 90,661.41

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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.