Home / 171,840.11-257,656.62-77,053.14

Finding the Fourth Proportional to 171,840.11, 257,656.62 and 77,053.14

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Solution

The fourth proportional to 171,840.11, 257,656.62 and 77,053.14 is: 115,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,840.11 : 257,656.62 = 77,053.14 : x
  2. Step 2: Convert to fraction form
    171,840.11/257,656.62 = 77,053.14/x
  3. Step 3: Cross multiply
    171,840.11x = 257,656.62 × 77,053.14
  4. Step 4: Simplify right side
    171,840.11x = 19,853,250,598.04
  5. Step 5: Solve for x
    x = 19,853,250,598.04/171,840.11
  6. Step 6: Final answer
    x = 115,533.28

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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.