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Finding the Fourth Proportional to 103,256.38, 154,941.02 and 40,079.01

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Solution

The fourth proportional to 103,256.38, 154,941.02 and 40,079.01 is: 60,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,256.38 : 154,941.02 = 40,079.01 : x
  2. Step 2: Convert to fraction form
    103,256.38/154,941.02 = 40,079.01/x
  3. Step 3: Cross multiply
    103,256.38x = 154,941.02 × 40,079.01
  4. Step 4: Simplify right side
    103,256.38x = 6,209,883,220.92
  5. Step 5: Solve for x
    x = 6,209,883,220.92/103,256.38
  6. Step 6: Final answer
    x = 60,140.43

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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.