Home / 123,962.80-185,944.20-76,723.60

Finding the Fourth Proportional to 123,962.80, 185,944.20 and 76,723.60

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Solution

The fourth proportional to 123,962.80, 185,944.20 and 76,723.60 is: 115,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,962.80 : 185,944.20 = 76,723.60 : x
  2. Step 2: Convert to fraction form
    123,962.80/185,944.20 = 76,723.60/x
  3. Step 3: Cross multiply
    123,962.80x = 185,944.20 × 76,723.60
  4. Step 4: Simplify right side
    123,962.80x = 14,266,308,423.12
  5. Step 5: Solve for x
    x = 14,266,308,423.12/123,962.80
  6. Step 6: Final answer
    x = 115,085.40

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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.