Home / 134,539.76-185,664.92-77,983.92

Finding the Fourth Proportional to 134,539.76, 185,664.92 and 77,983.92

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Solution

The fourth proportional to 134,539.76, 185,664.92 and 77,983.92 is: 107,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,539.76 : 185,664.92 = 77,983.92 : x
  2. Step 2: Convert to fraction form
    134,539.76/185,664.92 = 77,983.92/x
  3. Step 3: Cross multiply
    134,539.76x = 185,664.92 × 77,983.92
  4. Step 4: Simplify right side
    134,539.76x = 14,478,878,268.09
  5. Step 5: Solve for x
    x = 14,478,878,268.09/134,539.76
  6. Step 6: Final answer
    x = 107,617.84

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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.