Home / 139,134.36-208,699.50-96,400.38

Finding the Fourth Proportional to 139,134.36, 208,699.50 and 96,400.38

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Solution

The fourth proportional to 139,134.36, 208,699.50 and 96,400.38 is: 144,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,134.36 : 208,699.50 = 96,400.38 : x
  2. Step 2: Convert to fraction form
    139,134.36/208,699.50 = 96,400.38/x
  3. Step 3: Cross multiply
    139,134.36x = 208,699.50 × 96,400.38
  4. Step 4: Simplify right side
    139,134.36x = 20,118,711,105.81
  5. Step 5: Solve for x
    x = 20,118,711,105.81/139,134.36
  6. Step 6: Final answer
    x = 144,599.16

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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.