Home / 136,232.96-187,999.68-76,616.96

Finding the Fourth Proportional to 136,232.96, 187,999.68 and 76,616.96

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Solution

The fourth proportional to 136,232.96, 187,999.68 and 76,616.96 is: 105,730.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,232.96 : 187,999.68 = 76,616.96 : x
  2. Step 2: Convert to fraction form
    136,232.96/187,999.68 = 76,616.96/x
  3. Step 3: Cross multiply
    136,232.96x = 187,999.68 × 76,616.96
  4. Step 4: Simplify right side
    136,232.96x = 14,403,963,962.57
  5. Step 5: Solve for x
    x = 14,403,963,962.57/136,232.96
  6. Step 6: Final answer
    x = 105,730.39

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1.5x scale

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.