Home / 136,963.65-189,009.42-76,534.35

Finding the Fourth Proportional to 136,963.65, 189,009.42 and 76,534.35

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Solution

The fourth proportional to 136,963.65, 189,009.42 and 76,534.35 is: 105,617.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,963.65 : 189,009.42 = 76,534.35 : x
  2. Step 2: Convert to fraction form
    136,963.65/189,009.42 = 76,534.35/x
  3. Step 3: Cross multiply
    136,963.65x = 189,009.42 × 76,534.35
  4. Step 4: Simplify right side
    136,963.65x = 14,465,713,103.58
  5. Step 5: Solve for x
    x = 14,465,713,103.58/136,963.65
  6. Step 6: Final answer
    x = 105,617.17

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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.