Home / 185,901.40-278,852.10-115,820.20

Finding the Fourth Proportional to 185,901.40, 278,852.10 and 115,820.20

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Solution

The fourth proportional to 185,901.40, 278,852.10 and 115,820.20 is: 173,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,901.40 : 278,852.10 = 115,820.20 : x
  2. Step 2: Convert to fraction form
    185,901.40/278,852.10 = 115,820.20/x
  3. Step 3: Cross multiply
    185,901.40x = 278,852.10 × 115,820.20
  4. Step 4: Simplify right side
    185,901.40x = 32,296,705,992.42
  5. Step 5: Solve for x
    x = 32,296,705,992.42/185,901.40
  6. Step 6: Final answer
    x = 173,730.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.