Home / 153,011.10-229,358.70-68,811.60

Finding the Fourth Proportional to 153,011.10, 229,358.70 and 68,811.60

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Solution

The fourth proportional to 153,011.10, 229,358.70 and 68,811.60 is: 103,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,011.10 : 229,358.70 = 68,811.60 : x
  2. Step 2: Convert to fraction form
    153,011.10/229,358.70 = 68,811.60/x
  3. Step 3: Cross multiply
    153,011.10x = 229,358.70 × 68,811.60
  4. Step 4: Simplify right side
    153,011.10x = 15,782,539,120.92
  5. Step 5: Solve for x
    x = 15,782,539,120.92/153,011.10
  6. Step 6: Final answer
    x = 103,146.37

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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.