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Finding the Fourth Proportional to 130,859.52, 196,341.12 and 47,811.84

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Solution

The fourth proportional to 130,859.52, 196,341.12 and 47,811.84 is: 71,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,859.52 : 196,341.12 = 47,811.84 : x
  2. Step 2: Convert to fraction form
    130,859.52/196,341.12 = 47,811.84/x
  3. Step 3: Cross multiply
    130,859.52x = 196,341.12 × 47,811.84
  4. Step 4: Simplify right side
    130,859.52x = 9,387,430,214.86
  5. Step 5: Solve for x
    x = 9,387,430,214.86/130,859.52
  6. Step 6: Final answer
    x = 71,736.70

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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.