Home / 113,195.34-156,257.46-76,409.58

Finding the Fourth Proportional to 113,195.34, 156,257.46 and 76,409.58

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Solution

The fourth proportional to 113,195.34, 156,257.46 and 76,409.58 is: 105,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,195.34 : 156,257.46 = 76,409.58 : x
  2. Step 2: Convert to fraction form
    113,195.34/156,257.46 = 76,409.58/x
  3. Step 3: Cross multiply
    113,195.34x = 156,257.46 × 76,409.58
  4. Step 4: Simplify right side
    113,195.34x = 11,939,566,890.47
  5. Step 5: Solve for x
    x = 11,939,566,890.47/113,195.34
  6. Step 6: Final answer
    x = 105,477.55

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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.