Home / 177,857.74-266,878.62-78,088

Finding the Fourth Proportional to 177,857.74, 266,878.62 and 78,088

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Solution

The fourth proportional to 177,857.74, 266,878.62 and 78,088 is: 117,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,857.74 : 266,878.62 = 78,088 : x
  2. Step 2: Convert to fraction form
    177,857.74/266,878.62 = 78,088/x
  3. Step 3: Cross multiply
    177,857.74x = 266,878.62 × 78,088
  4. Step 4: Simplify right side
    177,857.74x = 20,840,017,678.56
  5. Step 5: Solve for x
    x = 20,840,017,678.56/177,857.74
  6. Step 6: Final answer
    x = 117,172.40

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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.