Home / 132,918.90-199,389.14-39,424.38

Finding the Fourth Proportional to 132,918.90, 199,389.14 and 39,424.38

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Solution

The fourth proportional to 132,918.90, 199,389.14 and 39,424.38 is: 59,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,918.90 : 199,389.14 = 39,424.38 : x
  2. Step 2: Convert to fraction form
    132,918.90/199,389.14 = 39,424.38/x
  3. Step 3: Cross multiply
    132,918.90x = 199,389.14 × 39,424.38
  4. Step 4: Simplify right side
    132,918.90x = 7,860,793,223.23
  5. Step 5: Solve for x
    x = 7,860,793,223.23/132,918.90
  6. Step 6: Final answer
    x = 59,139.77

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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.