Home / 105,816.80-158,725.20-98,818.40

Finding the Fourth Proportional to 105,816.80, 158,725.20 and 98,818.40

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Solution

The fourth proportional to 105,816.80, 158,725.20 and 98,818.40 is: 148,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,816.80 : 158,725.20 = 98,818.40 : x
  2. Step 2: Convert to fraction form
    105,816.80/158,725.20 = 98,818.40/x
  3. Step 3: Cross multiply
    105,816.80x = 158,725.20 × 98,818.40
  4. Step 4: Simplify right side
    105,816.80x = 15,684,970,303.68
  5. Step 5: Solve for x
    x = 15,684,970,303.68/105,816.80
  6. Step 6: Final answer
    x = 148,227.60

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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.