Home / 153,218.80-229,828.20-105,979.60

Finding the Fourth Proportional to 153,218.80, 229,828.20 and 105,979.60

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Solution

The fourth proportional to 153,218.80, 229,828.20 and 105,979.60 is: 158,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,218.80 : 229,828.20 = 105,979.60 : x
  2. Step 2: Convert to fraction form
    153,218.80/229,828.20 = 105,979.60/x
  3. Step 3: Cross multiply
    153,218.80x = 229,828.20 × 105,979.60
  4. Step 4: Simplify right side
    153,218.80x = 24,357,100,704.72
  5. Step 5: Solve for x
    x = 24,357,100,704.72/153,218.80
  6. Step 6: Final answer
    x = 158,969.40

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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.