Home / 123,454.89-185,145.72-52,376.58

Finding the Fourth Proportional to 123,454.89, 185,145.72 and 52,376.58

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Solution

The fourth proportional to 123,454.89, 185,145.72 and 52,376.58 is: 78,549.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,454.89 : 185,145.72 = 52,376.58 : x
  2. Step 2: Convert to fraction form
    123,454.89/185,145.72 = 52,376.58/x
  3. Step 3: Cross multiply
    123,454.89x = 185,145.72 × 52,376.58
  4. Step 4: Simplify right side
    123,454.89x = 9,697,299,615.24
  5. Step 5: Solve for x
    x = 9,697,299,615.24/123,454.89
  6. Step 6: Final answer
    x = 78,549.34

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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.