Home / 123,530.12-170,471.55-66,941.50

Finding the Fourth Proportional to 123,530.12, 170,471.55 and 66,941.50

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Solution

The fourth proportional to 123,530.12, 170,471.55 and 66,941.50 is: 92,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,530.12 : 170,471.55 = 66,941.50 : x
  2. Step 2: Convert to fraction form
    123,530.12/170,471.55 = 66,941.50/x
  3. Step 3: Cross multiply
    123,530.12x = 170,471.55 × 66,941.50
  4. Step 4: Simplify right side
    123,530.12x = 11,411,621,264.33
  5. Step 5: Solve for x
    x = 11,411,621,264.33/123,530.12
  6. Step 6: Final answer
    x = 92,379.26

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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.