Home / 123,543.56-170,485.53-66,953.72

Finding the Fourth Proportional to 123,543.56, 170,485.53 and 66,953.72

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Solution

The fourth proportional to 123,543.56, 170,485.53 and 66,953.72 is: 92,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,543.56 : 170,485.53 = 66,953.72 : x
  2. Step 2: Convert to fraction form
    123,543.56/170,485.53 = 66,953.72/x
  3. Step 3: Cross multiply
    123,543.56x = 170,485.53 × 66,953.72
  4. Step 4: Simplify right side
    123,543.56x = 11,414,639,587.24
  5. Step 5: Solve for x
    x = 11,414,639,587.24/123,543.56
  6. Step 6: Final answer
    x = 92,393.65

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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.