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Finding the Fourth Proportional to 177,795.80, 266,693.70 and 78,003.80

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Solution

The fourth proportional to 177,795.80, 266,693.70 and 78,003.80 is: 117,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,795.80 : 266,693.70 = 78,003.80 : x
  2. Step 2: Convert to fraction form
    177,795.80/266,693.70 = 78,003.80/x
  3. Step 3: Cross multiply
    177,795.80x = 266,693.70 × 78,003.80
  4. Step 4: Simplify right side
    177,795.80x = 20,803,122,036.06
  5. Step 5: Solve for x
    x = 20,803,122,036.06/177,795.80
  6. Step 6: Final answer
    x = 117,005.70

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1.5x scale

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.