Home / 115,314.64-172,845.60-45,116.80

Finding the Fourth Proportional to 115,314.64, 172,845.60 and 45,116.80

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Solution

The fourth proportional to 115,314.64, 172,845.60 and 45,116.80 is: 67,625.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,314.64 : 172,845.60 = 45,116.80 : x
  2. Step 2: Convert to fraction form
    115,314.64/172,845.60 = 45,116.80/x
  3. Step 3: Cross multiply
    115,314.64x = 172,845.60 × 45,116.80
  4. Step 4: Simplify right side
    115,314.64x = 7,798,240,366.08
  5. Step 5: Solve for x
    x = 7,798,240,366.08/115,314.64
  6. Step 6: Final answer
    x = 67,625.76

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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.