Home / 115,891.20-173,836.80-42,009.60

Finding the Fourth Proportional to 115,891.20, 173,836.80 and 42,009.60

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Solution

The fourth proportional to 115,891.20, 173,836.80 and 42,009.60 is: 63,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,891.20 : 173,836.80 = 42,009.60 : x
  2. Step 2: Convert to fraction form
    115,891.20/173,836.80 = 42,009.60/x
  3. Step 3: Cross multiply
    115,891.20x = 173,836.80 × 42,009.60
  4. Step 4: Simplify right side
    115,891.20x = 7,302,814,433.28
  5. Step 5: Solve for x
    x = 7,302,814,433.28/115,891.20
  6. Step 6: Final answer
    x = 63,014.40

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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.