Home / 124,130.72-186,083.12-45,226.96

Finding the Fourth Proportional to 124,130.72, 186,083.12 and 45,226.96

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Solution

The fourth proportional to 124,130.72, 186,083.12 and 45,226.96 is: 67,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,130.72 : 186,083.12 = 45,226.96 : x
  2. Step 2: Convert to fraction form
    124,130.72/186,083.12 = 45,226.96/x
  3. Step 3: Cross multiply
    124,130.72x = 186,083.12 × 45,226.96
  4. Step 4: Simplify right side
    124,130.72x = 8,415,973,824.92
  5. Step 5: Solve for x
    x = 8,415,973,824.92/124,130.72
  6. Step 6: Final answer
    x = 67,799.28

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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.