Home / 124,202.88-186,307.40-45,317.12

Finding the Fourth Proportional to 124,202.88, 186,307.40 and 45,317.12

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Solution

The fourth proportional to 124,202.88, 186,307.40 and 45,317.12 is: 67,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,202.88 : 186,307.40 = 45,317.12 : x
  2. Step 2: Convert to fraction form
    124,202.88/186,307.40 = 45,317.12/x
  3. Step 3: Cross multiply
    124,202.88x = 186,307.40 × 45,317.12
  4. Step 4: Simplify right side
    124,202.88x = 8,442,913,984.44
  5. Step 5: Solve for x
    x = 8,442,913,984.44/124,202.88
  6. Step 6: Final answer
    x = 67,976.80

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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.