Home / 102,521.88-141,538.32-66,693.96

Finding the Fourth Proportional to 102,521.88, 141,538.32 and 66,693.96

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Solution

The fourth proportional to 102,521.88, 141,538.32 and 66,693.96 is: 92,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,521.88 : 141,538.32 = 66,693.96 : x
  2. Step 2: Convert to fraction form
    102,521.88/141,538.32 = 66,693.96/x
  3. Step 3: Cross multiply
    102,521.88x = 141,538.32 × 66,693.96
  4. Step 4: Simplify right side
    102,521.88x = 9,439,751,052.55
  5. Step 5: Solve for x
    x = 9,439,751,052.55/102,521.88
  6. Step 6: Final answer
    x = 92,075.48

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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.