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Finding the Fourth Proportional to 103,167.60, 154,661.40 and 40,030.80

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Solution

The fourth proportional to 103,167.60, 154,661.40 and 40,030.80 is: 60,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,167.60 : 154,661.40 = 40,030.80 : x
  2. Step 2: Convert to fraction form
    103,167.60/154,661.40 = 40,030.80/x
  3. Step 3: Cross multiply
    103,167.60x = 154,661.40 × 40,030.80
  4. Step 4: Simplify right side
    103,167.60x = 6,191,219,571.12
  5. Step 5: Solve for x
    x = 6,191,219,571.12/103,167.60
  6. Step 6: Final answer
    x = 60,011.28

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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.