Home / 172,077.18-237,496.92-128,687.40

Finding the Fourth Proportional to 172,077.18, 237,496.92 and 128,687.40

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Solution

The fourth proportional to 172,077.18, 237,496.92 and 128,687.40 is: 177,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,077.18 : 237,496.92 = 128,687.40 : x
  2. Step 2: Convert to fraction form
    172,077.18/237,496.92 = 128,687.40/x
  3. Step 3: Cross multiply
    172,077.18x = 237,496.92 × 128,687.40
  4. Step 4: Simplify right side
    172,077.18x = 30,562,860,660.23
  5. Step 5: Solve for x
    x = 30,562,860,660.23/172,077.18
  6. Step 6: Final answer
    x = 177,611.36

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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.