Home / 136,964.63-189,007.56-76,535.77

Finding the Fourth Proportional to 136,964.63, 189,007.56 and 76,535.77

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Solution

The fourth proportional to 136,964.63, 189,007.56 and 76,535.77 is: 105,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,964.63 : 189,007.56 = 76,535.77 : x
  2. Step 2: Convert to fraction form
    136,964.63/189,007.56 = 76,535.77/x
  3. Step 3: Cross multiply
    136,964.63x = 189,007.56 × 76,535.77
  4. Step 4: Simplify right side
    136,964.63x = 14,465,838,807.03
  5. Step 5: Solve for x
    x = 14,465,838,807.03/136,964.63
  6. Step 6: Final answer
    x = 105,617.33

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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.