Home / 101,835.20-140,556.48-59,401.28

Finding the Fourth Proportional to 101,835.20, 140,556.48 and 59,401.28

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Solution

The fourth proportional to 101,835.20, 140,556.48 and 59,401.28 is: 81,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,835.20 : 140,556.48 = 59,401.28 : x
  2. Step 2: Convert to fraction form
    101,835.20/140,556.48 = 59,401.28/x
  3. Step 3: Cross multiply
    101,835.20x = 140,556.48 × 59,401.28
  4. Step 4: Simplify right side
    101,835.20x = 8,349,234,824.29
  5. Step 5: Solve for x
    x = 8,349,234,824.29/101,835.20
  6. Step 6: Final answer
    x = 81,987.71

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1.5x scale

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.