Home / 109,039.20-163,558.80-56,464.80

Finding the Fourth Proportional to 109,039.20, 163,558.80 and 56,464.80

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Solution

The fourth proportional to 109,039.20, 163,558.80 and 56,464.80 is: 84,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,039.20 : 163,558.80 = 56,464.80 : x
  2. Step 2: Convert to fraction form
    109,039.20/163,558.80 = 56,464.80/x
  3. Step 3: Cross multiply
    109,039.20x = 163,558.80 × 56,464.80
  4. Step 4: Simplify right side
    109,039.20x = 9,235,314,930.24
  5. Step 5: Solve for x
    x = 9,235,314,930.24/109,039.20
  6. Step 6: Final answer
    x = 84,697.20

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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.