Home / 130,909.15-196,659.32-77,636.07

Finding the Fourth Proportional to 130,909.15, 196,659.32 and 77,636.07

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Solution

The fourth proportional to 130,909.15, 196,659.32 and 77,636.07 is: 116,629.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,909.15 : 196,659.32 = 77,636.07 : x
  2. Step 2: Convert to fraction form
    130,909.15/196,659.32 = 77,636.07/x
  3. Step 3: Cross multiply
    130,909.15x = 196,659.32 × 77,636.07
  4. Step 4: Simplify right side
    130,909.15x = 15,267,856,733.67
  5. Step 5: Solve for x
    x = 15,267,856,733.67/130,909.15
  6. Step 6: Final answer
    x = 116,629.41

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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.