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Finding the Fourth Proportional to 160,809.60, 241,012.80 and 81,955.20

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Solution

The fourth proportional to 160,809.60, 241,012.80 and 81,955.20 is: 122,830.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,809.60 : 241,012.80 = 81,955.20 : x
  2. Step 2: Convert to fraction form
    160,809.60/241,012.80 = 81,955.20/x
  3. Step 3: Cross multiply
    160,809.60x = 241,012.80 × 81,955.20
  4. Step 4: Simplify right side
    160,809.60x = 19,752,252,226.56
  5. Step 5: Solve for x
    x = 19,752,252,226.56/160,809.60
  6. Step 6: Final answer
    x = 122,830.06

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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.