Home / 139,328.89-208,927.44-53,979.71

Finding the Fourth Proportional to 139,328.89, 208,927.44 and 53,979.71

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Solution

The fourth proportional to 139,328.89, 208,927.44 and 53,979.71 is: 80,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,328.89 : 208,927.44 = 53,979.71 : x
  2. Step 2: Convert to fraction form
    139,328.89/208,927.44 = 53,979.71/x
  3. Step 3: Cross multiply
    139,328.89x = 208,927.44 × 53,979.71
  4. Step 4: Simplify right side
    139,328.89x = 11,277,841,577.61
  5. Step 5: Solve for x
    x = 11,277,841,577.61/139,328.89
  6. Step 6: Final answer
    x = 80,944.03

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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.