Home / 136,634.10-204,841.80-57,683.40

Finding the Fourth Proportional to 136,634.10, 204,841.80 and 57,683.40

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Solution

The fourth proportional to 136,634.10, 204,841.80 and 57,683.40 is: 86,478.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,634.10 : 204,841.80 = 57,683.40 : x
  2. Step 2: Convert to fraction form
    136,634.10/204,841.80 = 57,683.40/x
  3. Step 3: Cross multiply
    136,634.10x = 204,841.80 × 57,683.40
  4. Step 4: Simplify right side
    136,634.10x = 11,815,971,486.12
  5. Step 5: Solve for x
    x = 11,815,971,486.12/136,634.10
  6. Step 6: Final answer
    x = 86,478.94

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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.