Home / 130,811.60-196,231.80-47,723.60

Finding the Fourth Proportional to 130,811.60, 196,231.80 and 47,723.60

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Solution

The fourth proportional to 130,811.60, 196,231.80 and 47,723.60 is: 71,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,811.60 : 196,231.80 = 47,723.60 : x
  2. Step 2: Convert to fraction form
    130,811.60/196,231.80 = 47,723.60/x
  3. Step 3: Cross multiply
    130,811.60x = 196,231.80 × 47,723.60
  4. Step 4: Simplify right side
    130,811.60x = 9,364,887,930.48
  5. Step 5: Solve for x
    x = 9,364,887,930.48/130,811.60
  6. Step 6: Final answer
    x = 71,590.65

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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.