Home / 162,535.09-243,850.93-78,270.89

Finding the Fourth Proportional to 162,535.09, 243,850.93 and 78,270.89

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Solution

The fourth proportional to 162,535.09, 243,850.93 and 78,270.89 is: 117,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,535.09 : 243,850.93 = 78,270.89 : x
  2. Step 2: Convert to fraction form
    162,535.09/243,850.93 = 78,270.89/x
  3. Step 3: Cross multiply
    162,535.09x = 243,850.93 × 78,270.89
  4. Step 4: Simplify right side
    162,535.09x = 19,086,430,172.65
  5. Step 5: Solve for x
    x = 19,086,430,172.65/162,535.09
  6. Step 6: Final answer
    x = 117,429.60

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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.