Home / 123,454.51-185,145.15-52,376.20

Finding the Fourth Proportional to 123,454.51, 185,145.15 and 52,376.20

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Solution

The fourth proportional to 123,454.51, 185,145.15 and 52,376.20 is: 78,548.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,454.51 : 185,145.15 = 52,376.20 : x
  2. Step 2: Convert to fraction form
    123,454.51/185,145.15 = 52,376.20/x
  3. Step 3: Cross multiply
    123,454.51x = 185,145.15 × 52,376.20
  4. Step 4: Simplify right side
    123,454.51x = 9,697,199,138.98
  5. Step 5: Solve for x
    x = 9,697,199,138.98/123,454.51
  6. Step 6: Final answer
    x = 78,548.77

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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.