Home / 149,792.87-206,649.96-86,117.15

Finding the Fourth Proportional to 149,792.87, 206,649.96 and 86,117.15

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Solution

The fourth proportional to 149,792.87, 206,649.96 and 86,117.15 is: 118,804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,792.87 : 206,649.96 = 86,117.15 : x
  2. Step 2: Convert to fraction form
    149,792.87/206,649.96 = 86,117.15/x
  3. Step 3: Cross multiply
    149,792.87x = 206,649.96 × 86,117.15
  4. Step 4: Simplify right side
    149,792.87x = 17,796,105,602.81
  5. Step 5: Solve for x
    x = 17,796,105,602.81/149,792.87
  6. Step 6: Final answer
    x = 118,804.76

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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.