Home / 123,326.56-170,191.44-72,328.93

Finding the Fourth Proportional to 123,326.56, 170,191.44 and 72,328.93

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Solution

The fourth proportional to 123,326.56, 170,191.44 and 72,328.93 is: 99,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,326.56 : 170,191.44 = 72,328.93 : x
  2. Step 2: Convert to fraction form
    123,326.56/170,191.44 = 72,328.93/x
  3. Step 3: Cross multiply
    123,326.56x = 170,191.44 × 72,328.93
  4. Step 4: Simplify right side
    123,326.56x = 12,309,764,750.36
  5. Step 5: Solve for x
    x = 12,309,764,750.36/123,326.56
  6. Step 6: Final answer
    x = 99,814.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.