Home / 208,316.03-312,488.73-103,106.75

Finding the Fourth Proportional to 208,316.03, 312,488.73 and 103,106.75

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Solution

The fourth proportional to 208,316.03, 312,488.73 and 103,106.75 is: 154,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,316.03 : 312,488.73 = 103,106.75 : x
  2. Step 2: Convert to fraction form
    208,316.03/312,488.73 = 103,106.75/x
  3. Step 3: Cross multiply
    208,316.03x = 312,488.73 × 103,106.75
  4. Step 4: Simplify right side
    208,316.03x = 32,219,696,846.39
  5. Step 5: Solve for x
    x = 32,219,696,846.39/208,316.03
  6. Step 6: Final answer
    x = 154,667.39

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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.