Home / 134,388.54-185,476.60-80,703.16

Finding the Fourth Proportional to 134,388.54, 185,476.60 and 80,703.16

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Solution

The fourth proportional to 134,388.54, 185,476.60 and 80,703.16 is: 111,382.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,388.54 : 185,476.60 = 80,703.16 : x
  2. Step 2: Convert to fraction form
    134,388.54/185,476.60 = 80,703.16/x
  3. Step 3: Cross multiply
    134,388.54x = 185,476.60 × 80,703.16
  4. Step 4: Simplify right side
    134,388.54x = 14,968,547,726.06
  5. Step 5: Solve for x
    x = 14,968,547,726.06/134,388.54
  6. Step 6: Final answer
    x = 111,382.62

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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.