Home / 176,390.72-243,630.24-128,567.36

Finding the Fourth Proportional to 176,390.72, 243,630.24 and 128,567.36

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Solution

The fourth proportional to 176,390.72, 243,630.24 and 128,567.36 is: 177,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,390.72 : 243,630.24 = 128,567.36 : x
  2. Step 2: Convert to fraction form
    176,390.72/243,630.24 = 128,567.36/x
  3. Step 3: Cross multiply
    176,390.72x = 243,630.24 × 128,567.36
  4. Step 4: Simplify right side
    176,390.72x = 31,322,896,772.97
  5. Step 5: Solve for x
    x = 31,322,896,772.97/176,390.72
  6. Step 6: Final answer
    x = 177,576.78

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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.