Home / 127,905.48-191,923.02-86,265

Finding the Fourth Proportional to 127,905.48, 191,923.02 and 86,265

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Solution

The fourth proportional to 127,905.48, 191,923.02 and 86,265 is: 129,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,905.48 : 191,923.02 = 86,265 : x
  2. Step 2: Convert to fraction form
    127,905.48/191,923.02 = 86,265/x
  3. Step 3: Cross multiply
    127,905.48x = 191,923.02 × 86,265
  4. Step 4: Simplify right side
    127,905.48x = 16,556,239,320.30
  5. Step 5: Solve for x
    x = 16,556,239,320.30/127,905.48
  6. Step 6: Final answer
    x = 129,441.20

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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.