Home / 96,727.20-145,090.80-55,178.40

Finding the Fourth Proportional to 96,727.20, 145,090.80 and 55,178.40

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Solution

The fourth proportional to 96,727.20, 145,090.80 and 55,178.40 is: 82,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,727.20 : 145,090.80 = 55,178.40 : x
  2. Step 2: Convert to fraction form
    96,727.20/145,090.80 = 55,178.40/x
  3. Step 3: Cross multiply
    96,727.20x = 145,090.80 × 55,178.40
  4. Step 4: Simplify right side
    96,727.20x = 8,005,878,198.72
  5. Step 5: Solve for x
    x = 8,005,878,198.72/96,727.20
  6. Step 6: Final answer
    x = 82,767.60

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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.