Home / 177,619.80-266,429.70-128,047.80

Finding the Fourth Proportional to 177,619.80, 266,429.70 and 128,047.80

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Solution

The fourth proportional to 177,619.80, 266,429.70 and 128,047.80 is: 192,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,619.80 : 266,429.70 = 128,047.80 : x
  2. Step 2: Convert to fraction form
    177,619.80/266,429.70 = 128,047.80/x
  3. Step 3: Cross multiply
    177,619.80x = 266,429.70 × 128,047.80
  4. Step 4: Simplify right side
    177,619.80x = 34,115,736,939.66
  5. Step 5: Solve for x
    x = 34,115,736,939.66/177,619.80
  6. Step 6: Final answer
    x = 192,071.70

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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.