Home / 149,929.70-206,910.69-86,277.02

Finding the Fourth Proportional to 149,929.70, 206,910.69 and 86,277.02

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Solution

The fourth proportional to 149,929.70, 206,910.69 and 86,277.02 is: 119,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,929.70 : 206,910.69 = 86,277.02 : x
  2. Step 2: Convert to fraction form
    149,929.70/206,910.69 = 86,277.02/x
  3. Step 3: Cross multiply
    149,929.70x = 206,910.69 × 86,277.02
  4. Step 4: Simplify right side
    149,929.70x = 17,851,637,739.34
  5. Step 5: Solve for x
    x = 17,851,637,739.34/149,929.70
  6. Step 6: Final answer
    x = 119,066.72

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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.