Home / 127,977.72-176,614.07-71,400.03

Finding the Fourth Proportional to 127,977.72, 176,614.07 and 71,400.03

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Solution

The fourth proportional to 127,977.72, 176,614.07 and 71,400.03 is: 98,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,977.72 : 176,614.07 = 71,400.03 : x
  2. Step 2: Convert to fraction form
    127,977.72/176,614.07 = 71,400.03/x
  3. Step 3: Cross multiply
    127,977.72x = 176,614.07 × 71,400.03
  4. Step 4: Simplify right side
    127,977.72x = 12,610,249,539.42
  5. Step 5: Solve for x
    x = 12,610,249,539.42/127,977.72
  6. Step 6: Final answer
    x = 98,534.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.