Home / 136,984.04-189,037.32-76,554.64

Finding the Fourth Proportional to 136,984.04, 189,037.32 and 76,554.64

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Solution

The fourth proportional to 136,984.04, 189,037.32 and 76,554.64 is: 105,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,984.04 : 189,037.32 = 76,554.64 : x
  2. Step 2: Convert to fraction form
    136,984.04/189,037.32 = 76,554.64/x
  3. Step 3: Cross multiply
    136,984.04x = 189,037.32 × 76,554.64
  4. Step 4: Simplify right side
    136,984.04x = 14,471,684,675.36
  5. Step 5: Solve for x
    x = 14,471,684,675.36/136,984.04
  6. Step 6: Final answer
    x = 105,645.05

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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.