Home / 115,220.49-172,830.70-36,340.86

Finding the Fourth Proportional to 115,220.49, 172,830.70 and 36,340.86

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Solution

The fourth proportional to 115,220.49, 172,830.70 and 36,340.86 is: 54,511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,220.49 : 172,830.70 = 36,340.86 : x
  2. Step 2: Convert to fraction form
    115,220.49/172,830.70 = 36,340.86/x
  3. Step 3: Cross multiply
    115,220.49x = 172,830.70 × 36,340.86
  4. Step 4: Simplify right side
    115,220.49x = 6,280,816,272.40
  5. Step 5: Solve for x
    x = 6,280,816,272.40/115,220.49
  6. Step 6: Final answer
    x = 54,511.28

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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.