Home / 139,895.22-209,904.86-73,319.54

Finding the Fourth Proportional to 139,895.22, 209,904.86 and 73,319.54

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Solution

The fourth proportional to 139,895.22, 209,904.86 and 73,319.54 is: 110,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,895.22 : 209,904.86 = 73,319.54 : x
  2. Step 2: Convert to fraction form
    139,895.22/209,904.86 = 73,319.54/x
  3. Step 3: Cross multiply
    139,895.22x = 209,904.86 × 73,319.54
  4. Step 4: Simplify right side
    139,895.22x = 15,390,127,778.96
  5. Step 5: Solve for x
    x = 15,390,127,778.96/139,895.22
  6. Step 6: Final answer
    x = 110,011.82

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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.