Home / 109,283.20-163,924.80-99,606.40

Finding the Fourth Proportional to 109,283.20, 163,924.80 and 99,606.40

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Solution

The fourth proportional to 109,283.20, 163,924.80 and 99,606.40 is: 149,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,283.20 : 163,924.80 = 99,606.40 : x
  2. Step 2: Convert to fraction form
    109,283.20/163,924.80 = 99,606.40/x
  3. Step 3: Cross multiply
    109,283.20x = 163,924.80 × 99,606.40
  4. Step 4: Simplify right side
    109,283.20x = 16,327,959,198.72
  5. Step 5: Solve for x
    x = 16,327,959,198.72/109,283.20
  6. Step 6: Final answer
    x = 149,409.60

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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.