Home / 149,809.48-206,539.86-115,392.76

Finding the Fourth Proportional to 149,809.48, 206,539.86 and 115,392.76

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Solution

The fourth proportional to 149,809.48, 206,539.86 and 115,392.76 is: 159,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,809.48 : 206,539.86 = 115,392.76 : x
  2. Step 2: Convert to fraction form
    149,809.48/206,539.86 = 115,392.76/x
  3. Step 3: Cross multiply
    149,809.48x = 206,539.86 × 115,392.76
  4. Step 4: Simplify right side
    149,809.48x = 23,833,204,495.41
  5. Step 5: Solve for x
    x = 23,833,204,495.41/149,809.48
  6. Step 6: Final answer
    x = 159,090.10

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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.