Home / 177,739.31-266,631.14-81,653.47

Finding the Fourth Proportional to 177,739.31, 266,631.14 and 81,653.47

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Solution

The fourth proportional to 177,739.31, 266,631.14 and 81,653.47 is: 122,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,739.31 : 266,631.14 = 81,653.47 : x
  2. Step 2: Convert to fraction form
    177,739.31/266,631.14 = 81,653.47/x
  3. Step 3: Cross multiply
    177,739.31x = 266,631.14 × 81,653.47
  4. Step 4: Simplify right side
    177,739.31x = 21,771,357,328.61
  5. Step 5: Solve for x
    x = 21,771,357,328.61/177,739.31
  6. Step 6: Final answer
    x = 122,490.39

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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.