Home / 115,340.88-172,860.60-59,133.36

Finding the Fourth Proportional to 115,340.88, 172,860.60 and 59,133.36

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Solution

The fourth proportional to 115,340.88, 172,860.60 and 59,133.36 is: 88,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,340.88 : 172,860.60 = 59,133.36 : x
  2. Step 2: Convert to fraction form
    115,340.88/172,860.60 = 59,133.36/x
  3. Step 3: Cross multiply
    115,340.88x = 172,860.60 × 59,133.36
  4. Step 4: Simplify right side
    115,340.88x = 10,221,828,089.62
  5. Step 5: Solve for x
    x = 10,221,828,089.62/115,340.88
  6. Step 6: Final answer
    x = 88,622.77

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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.