Home / 109,036.80-163,555.20-108,345.60

Finding the Fourth Proportional to 109,036.80, 163,555.20 and 108,345.60

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Solution

The fourth proportional to 109,036.80, 163,555.20 and 108,345.60 is: 162,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,036.80 : 163,555.20 = 108,345.60 : x
  2. Step 2: Convert to fraction form
    109,036.80/163,555.20 = 108,345.60/x
  3. Step 3: Cross multiply
    109,036.80x = 163,555.20 × 108,345.60
  4. Step 4: Simplify right side
    109,036.80x = 17,720,486,277.12
  5. Step 5: Solve for x
    x = 17,720,486,277.12/109,036.80
  6. Step 6: Final answer
    x = 162,518.40

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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.