Home / 188,636.40-260,355.21-108,117.89

Finding the Fourth Proportional to 188,636.40, 260,355.21 and 108,117.89

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Solution

The fourth proportional to 188,636.40, 260,355.21 and 108,117.89 is: 149,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,636.40 : 260,355.21 = 108,117.89 : x
  2. Step 2: Convert to fraction form
    188,636.40/260,355.21 = 108,117.89/x
  3. Step 3: Cross multiply
    188,636.40x = 260,355.21 × 108,117.89
  4. Step 4: Simplify right side
    188,636.40x = 28,149,055,955.71
  5. Step 5: Solve for x
    x = 28,149,055,955.71/188,636.40
  6. Step 6: Final answer
    x = 149,223.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.