Home / 185,622.60-256,160.10-100,739.76

Finding the Fourth Proportional to 185,622.60, 256,160.10 and 100,739.76

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Solution

The fourth proportional to 185,622.60, 256,160.10 and 100,739.76 is: 139,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,622.60 : 256,160.10 = 100,739.76 : x
  2. Step 2: Convert to fraction form
    185,622.60/256,160.10 = 100,739.76/x
  3. Step 3: Cross multiply
    185,622.60x = 256,160.10 × 100,739.76
  4. Step 4: Simplify right side
    185,622.60x = 25,805,506,995.58
  5. Step 5: Solve for x
    x = 25,805,506,995.58/185,622.60
  6. Step 6: Final answer
    x = 139,021.36

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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.