Home / 230,077.08-317,503.83-128,100.30

Finding the Fourth Proportional to 230,077.08, 317,503.83 and 128,100.30

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Solution

The fourth proportional to 230,077.08, 317,503.83 and 128,100.30 is: 176,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,077.08 : 317,503.83 = 128,100.30 : x
  2. Step 2: Convert to fraction form
    230,077.08/317,503.83 = 128,100.30/x
  3. Step 3: Cross multiply
    230,077.08x = 317,503.83 × 128,100.30
  4. Step 4: Simplify right side
    230,077.08x = 40,672,335,874.15
  5. Step 5: Solve for x
    x = 40,672,335,874.15/230,077.08
  6. Step 6: Final answer
    x = 176,777.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.