Home / 123,915.45-185,768.69-53,741.91

Finding the Fourth Proportional to 123,915.45, 185,768.69 and 53,741.91

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Solution

The fourth proportional to 123,915.45, 185,768.69 and 53,741.91 is: 80,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,915.45 : 185,768.69 = 53,741.91 : x
  2. Step 2: Convert to fraction form
    123,915.45/185,768.69 = 53,741.91/x
  3. Step 3: Cross multiply
    123,915.45x = 185,768.69 × 53,741.91
  4. Step 4: Simplify right side
    123,915.45x = 9,983,563,950.09
  5. Step 5: Solve for x
    x = 9,983,563,950.09/123,915.45
  6. Step 6: Final answer
    x = 80,567.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.