Home / 115,300.20-172,982.70-56,137.80

Finding the Fourth Proportional to 115,300.20, 172,982.70 and 56,137.80

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Solution

The fourth proportional to 115,300.20, 172,982.70 and 56,137.80 is: 84,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,300.20 : 172,982.70 = 56,137.80 : x
  2. Step 2: Convert to fraction form
    115,300.20/172,982.70 = 56,137.80/x
  3. Step 3: Cross multiply
    115,300.20x = 172,982.70 × 56,137.80
  4. Step 4: Simplify right side
    115,300.20x = 9,710,868,216.06
  5. Step 5: Solve for x
    x = 9,710,868,216.06/115,300.20
  6. Step 6: Final answer
    x = 84,222.48

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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.