Home / 185,615.34-256,147.80-100,730.58

Finding the Fourth Proportional to 185,615.34, 256,147.80 and 100,730.58

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Solution

The fourth proportional to 185,615.34, 256,147.80 and 100,730.58 is: 139,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,615.34 : 256,147.80 = 100,730.58 : x
  2. Step 2: Convert to fraction form
    185,615.34/256,147.80 = 100,730.58/x
  3. Step 3: Cross multiply
    185,615.34x = 256,147.80 × 100,730.58
  4. Step 4: Simplify right side
    185,615.34x = 25,801,916,459.72
  5. Step 5: Solve for x
    x = 25,801,916,459.72/185,615.34
  6. Step 6: Final answer
    x = 139,007.46

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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.