Home / 149,119.32-205,780.56-84,600.36

Finding the Fourth Proportional to 149,119.32, 205,780.56 and 84,600.36

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Solution

The fourth proportional to 149,119.32, 205,780.56 and 84,600.36 is: 116,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,119.32 : 205,780.56 = 84,600.36 : x
  2. Step 2: Convert to fraction form
    149,119.32/205,780.56 = 84,600.36/x
  3. Step 3: Cross multiply
    149,119.32x = 205,780.56 × 84,600.36
  4. Step 4: Simplify right side
    149,119.32x = 17,409,109,457.00
  5. Step 5: Solve for x
    x = 17,409,109,457.00/149,119.32
  6. Step 6: Final answer
    x = 116,746.17

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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.