Home / 229,353.64-316,508.34-128,752.36

Finding the Fourth Proportional to 229,353.64, 316,508.34 and 128,752.36

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Solution

The fourth proportional to 229,353.64, 316,508.34 and 128,752.36 is: 177,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,353.64 : 316,508.34 = 128,752.36 : x
  2. Step 2: Convert to fraction form
    229,353.64/316,508.34 = 128,752.36/x
  3. Step 3: Cross multiply
    229,353.64x = 316,508.34 × 128,752.36
  4. Step 4: Simplify right side
    229,353.64x = 40,751,195,734.68
  5. Step 5: Solve for x
    x = 40,751,195,734.68/229,353.64
  6. Step 6: Final answer
    x = 177,678.43

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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.