Home / 136,724.02-188,685.16-76,294.89

Finding the Fourth Proportional to 136,724.02, 188,685.16 and 76,294.89

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Solution

The fourth proportional to 136,724.02, 188,685.16 and 76,294.89 is: 105,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,724.02 : 188,685.16 = 76,294.89 : x
  2. Step 2: Convert to fraction form
    136,724.02/188,685.16 = 76,294.89/x
  3. Step 3: Cross multiply
    136,724.02x = 188,685.16 × 76,294.89
  4. Step 4: Simplify right side
    136,724.02x = 14,395,713,336.10
  5. Step 5: Solve for x
    x = 14,395,713,336.10/136,724.02
  6. Step 6: Final answer
    x = 105,290.30

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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.