Home / 139,244.69-208,878.07-39,405.51

Finding the Fourth Proportional to 139,244.69, 208,878.07 and 39,405.51

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Solution

The fourth proportional to 139,244.69, 208,878.07 and 39,405.51 is: 59,111.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,244.69 : 208,878.07 = 39,405.51 : x
  2. Step 2: Convert to fraction form
    139,244.69/208,878.07 = 39,405.51/x
  3. Step 3: Cross multiply
    139,244.69x = 208,878.07 × 39,405.51
  4. Step 4: Simplify right side
    139,244.69x = 8,230,946,876.17
  5. Step 5: Solve for x
    x = 8,230,946,876.17/139,244.69
  6. Step 6: Final answer
    x = 59,111.39

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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.