Home / 134,922.94-186,210.07-78,334.31

Finding the Fourth Proportional to 134,922.94, 186,210.07 and 78,334.31

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Solution

The fourth proportional to 134,922.94, 186,210.07 and 78,334.31 is: 108,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,922.94 : 186,210.07 = 78,334.31 : x
  2. Step 2: Convert to fraction form
    134,922.94/186,210.07 = 78,334.31/x
  3. Step 3: Cross multiply
    134,922.94x = 186,210.07 × 78,334.31
  4. Step 4: Simplify right side
    134,922.94x = 14,586,637,618.19
  5. Step 5: Solve for x
    x = 14,586,637,618.19/134,922.94
  6. Step 6: Final answer
    x = 108,110.88

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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.