Home / 134,535.63-185,659.17-77,979.81

Finding the Fourth Proportional to 134,535.63, 185,659.17 and 77,979.81

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Solution

The fourth proportional to 134,535.63, 185,659.17 and 77,979.81 is: 107,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,535.63 : 185,659.17 = 77,979.81 : x
  2. Step 2: Convert to fraction form
    134,535.63/185,659.17 = 77,979.81/x
  3. Step 3: Cross multiply
    134,535.63x = 185,659.17 × 77,979.81
  4. Step 4: Simplify right side
    134,535.63x = 14,477,666,801.36
  5. Step 5: Solve for x
    x = 14,477,666,801.36/134,535.63
  6. Step 6: Final answer
    x = 107,612.14

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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.