Home / 165,138.62-247,644.54-70,308.68

Finding the Fourth Proportional to 165,138.62, 247,644.54 and 70,308.68

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Solution

The fourth proportional to 165,138.62, 247,644.54 and 70,308.68 is: 105,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,138.62 : 247,644.54 = 70,308.68 : x
  2. Step 2: Convert to fraction form
    165,138.62/247,644.54 = 70,308.68/x
  3. Step 3: Cross multiply
    165,138.62x = 247,644.54 × 70,308.68
  4. Step 4: Simplify right side
    165,138.62x = 17,411,559,478.38
  5. Step 5: Solve for x
    x = 17,411,559,478.38/165,138.62
  6. Step 6: Final answer
    x = 105,436.03

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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.