Home / 130,587.39-195,881.09-86,203.71

Finding the Fourth Proportional to 130,587.39, 195,881.09 and 86,203.71

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Solution

The fourth proportional to 130,587.39, 195,881.09 and 86,203.71 is: 129,305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,587.39 : 195,881.09 = 86,203.71 : x
  2. Step 2: Convert to fraction form
    130,587.39/195,881.09 = 86,203.71/x
  3. Step 3: Cross multiply
    130,587.39x = 195,881.09 × 86,203.71
  4. Step 4: Simplify right side
    130,587.39x = 16,885,676,245.83
  5. Step 5: Solve for x
    x = 16,885,676,245.83/130,587.39
  6. Step 6: Final answer
    x = 129,305.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.