Home / 115,214.40-172,821.60-94,219.20

Finding the Fourth Proportional to 115,214.40, 172,821.60 and 94,219.20

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Solution

The fourth proportional to 115,214.40, 172,821.60 and 94,219.20 is: 141,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,214.40 : 172,821.60 = 94,219.20 : x
  2. Step 2: Convert to fraction form
    115,214.40/172,821.60 = 94,219.20/x
  3. Step 3: Cross multiply
    115,214.40x = 172,821.60 × 94,219.20
  4. Step 4: Simplify right side
    115,214.40x = 16,283,112,894.72
  5. Step 5: Solve for x
    x = 16,283,112,894.72/115,214.40
  6. Step 6: Final answer
    x = 141,328.80

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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.