Home / 130,961.52-196,528.32-71,838.72

Finding the Fourth Proportional to 130,961.52, 196,528.32 and 71,838.72

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Solution

The fourth proportional to 130,961.52, 196,528.32 and 71,838.72 is: 107,805.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,961.52 : 196,528.32 = 71,838.72 : x
  2. Step 2: Convert to fraction form
    130,961.52/196,528.32 = 71,838.72/x
  3. Step 3: Cross multiply
    130,961.52x = 196,528.32 × 71,838.72
  4. Step 4: Simplify right side
    130,961.52x = 14,118,342,952.55
  5. Step 5: Solve for x
    x = 14,118,342,952.55/130,961.52
  6. Step 6: Final answer
    x = 107,805.28

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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.