Home / 123,365.93-170,245.53-66,777.30

Finding the Fourth Proportional to 123,365.93, 170,245.53 and 66,777.30

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Solution

The fourth proportional to 123,365.93, 170,245.53 and 66,777.30 is: 92,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,365.93 : 170,245.53 = 66,777.30 : x
  2. Step 2: Convert to fraction form
    123,365.93/170,245.53 = 66,777.30/x
  3. Step 3: Cross multiply
    123,365.93x = 170,245.53 × 66,777.30
  4. Step 4: Simplify right side
    123,365.93x = 11,368,536,830.47
  5. Step 5: Solve for x
    x = 11,368,536,830.47/123,365.93
  6. Step 6: Final answer
    x = 92,152.97

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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.