Home / 135,116.80-186,507.84-92,815.36

Finding the Fourth Proportional to 135,116.80, 186,507.84 and 92,815.36

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Solution

The fourth proportional to 135,116.80, 186,507.84 and 92,815.36 is: 128,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,116.80 : 186,507.84 = 92,815.36 : x
  2. Step 2: Convert to fraction form
    135,116.80/186,507.84 = 92,815.36/x
  3. Step 3: Cross multiply
    135,116.80x = 186,507.84 × 92,815.36
  4. Step 4: Simplify right side
    135,116.80x = 17,310,792,312.42
  5. Step 5: Solve for x
    x = 17,310,792,312.42/135,116.80
  6. Step 6: Final answer
    x = 128,117.25

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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.