Home / 127,401.12-175,768.08-87,588

Finding the Fourth Proportional to 127,401.12, 175,768.08 and 87,588

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Solution

The fourth proportional to 127,401.12, 175,768.08 and 87,588 is: 120,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,401.12 : 175,768.08 = 87,588 : x
  2. Step 2: Convert to fraction form
    127,401.12/175,768.08 = 87,588/x
  3. Step 3: Cross multiply
    127,401.12x = 175,768.08 × 87,588
  4. Step 4: Simplify right side
    127,401.12x = 15,395,174,591.04
  5. Step 5: Solve for x
    x = 15,395,174,591.04/127,401.12
  6. Step 6: Final answer
    x = 120,840.18

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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.