Home / 127,401.26-191,102.32-38,655.50

Finding the Fourth Proportional to 127,401.26, 191,102.32 and 38,655.50

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Solution

The fourth proportional to 127,401.26, 191,102.32 and 38,655.50 is: 57,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,401.26 : 191,102.32 = 38,655.50 : x
  2. Step 2: Convert to fraction form
    127,401.26/191,102.32 = 38,655.50/x
  3. Step 3: Cross multiply
    127,401.26x = 191,102.32 × 38,655.50
  4. Step 4: Simplify right side
    127,401.26x = 7,387,155,730.76
  5. Step 5: Solve for x
    x = 7,387,155,730.76/127,401.26
  6. Step 6: Final answer
    x = 57,983.38

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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.