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Finding the Fourth Proportional to 102,512.57, 153,826.27 and 43,392.49

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Solution

The fourth proportional to 102,512.57, 153,826.27 and 43,392.49 is: 65,113.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,512.57 : 153,826.27 = 43,392.49 : x
  2. Step 2: Convert to fraction form
    102,512.57/153,826.27 = 43,392.49/x
  3. Step 3: Cross multiply
    102,512.57x = 153,826.27 × 43,392.49
  4. Step 4: Simplify right side
    102,512.57x = 6,674,904,389.67
  5. Step 5: Solve for x
    x = 6,674,904,389.67/102,512.57
  6. Step 6: Final answer
    x = 65,113.04

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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.