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Finding the Fourth Proportional to 102,941.40, 154,412.10 and 47,537.40

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Solution

The fourth proportional to 102,941.40, 154,412.10 and 47,537.40 is: 71,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,941.40 : 154,412.10 = 47,537.40 : x
  2. Step 2: Convert to fraction form
    102,941.40/154,412.10 = 47,537.40/x
  3. Step 3: Cross multiply
    102,941.40x = 154,412.10 × 47,537.40
  4. Step 4: Simplify right side
    102,941.40x = 7,340,349,762.54
  5. Step 5: Solve for x
    x = 7,340,349,762.54/102,941.40
  6. Step 6: Final answer
    x = 71,306.10

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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.