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Finding the Fourth Proportional to 102,539.40, 153,833.40 and 52,627.20

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Solution

The fourth proportional to 102,539.40, 153,833.40 and 52,627.20 is: 78,953.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,539.40 : 153,833.40 = 52,627.20 : x
  2. Step 2: Convert to fraction form
    102,539.40/153,833.40 = 52,627.20/x
  3. Step 3: Cross multiply
    102,539.40x = 153,833.40 × 52,627.20
  4. Step 4: Simplify right side
    102,539.40x = 8,095,821,108.48
  5. Step 5: Solve for x
    x = 8,095,821,108.48/102,539.40
  6. Step 6: Final answer
    x = 78,953.27

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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.