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Finding the Fourth Proportional to 124,368.78, 186,579.73 and 40,133.73

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Solution

The fourth proportional to 124,368.78, 186,579.73 and 40,133.73 is: 60,209.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,368.78 : 186,579.73 = 40,133.73 : x
  2. Step 2: Convert to fraction form
    124,368.78/186,579.73 = 40,133.73/x
  3. Step 3: Cross multiply
    124,368.78x = 186,579.73 × 40,133.73
  4. Step 4: Simplify right side
    124,368.78x = 7,488,139,373.73
  5. Step 5: Solve for x
    x = 7,488,139,373.73/124,368.78
  6. Step 6: Final answer
    x = 60,209.16

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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.