Home / 139,137.75-208,707.21-59,155.11

Finding the Fourth Proportional to 139,137.75, 208,707.21 and 59,155.11

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Solution

The fourth proportional to 139,137.75, 208,707.21 and 59,155.11 is: 88,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,137.75 : 208,707.21 = 59,155.11 : x
  2. Step 2: Convert to fraction form
    139,137.75/208,707.21 = 59,155.11/x
  3. Step 3: Cross multiply
    139,137.75x = 208,707.21 × 59,155.11
  4. Step 4: Simplify right side
    139,137.75x = 12,346,097,965.34
  5. Step 5: Solve for x
    x = 12,346,097,965.34/139,137.75
  6. Step 6: Final answer
    x = 88,732.91

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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.