Home / 136,625.68-188,543.04-76,196.40

Finding the Fourth Proportional to 136,625.68, 188,543.04 and 76,196.40

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Solution

The fourth proportional to 136,625.68, 188,543.04 and 76,196.40 is: 105,150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,625.68 : 188,543.04 = 76,196.40 : x
  2. Step 2: Convert to fraction form
    136,625.68/188,543.04 = 76,196.40/x
  3. Step 3: Cross multiply
    136,625.68x = 188,543.04 × 76,196.40
  4. Step 4: Simplify right side
    136,625.68x = 14,366,300,893.06
  5. Step 5: Solve for x
    x = 14,366,300,893.06/136,625.68
  6. Step 6: Final answer
    x = 105,150.81

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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.