Home / 102,128.07-140,932.19-59,100.67

Finding the Fourth Proportional to 102,128.07, 140,932.19 and 59,100.67

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Solution

The fourth proportional to 102,128.07, 140,932.19 and 59,100.67 is: 81,556.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,128.07 : 140,932.19 = 59,100.67 : x
  2. Step 2: Convert to fraction form
    102,128.07/140,932.19 = 59,100.67/x
  3. Step 3: Cross multiply
    102,128.07x = 140,932.19 × 59,100.67
  4. Step 4: Simplify right side
    102,128.07x = 8,329,186,853.57
  5. Step 5: Solve for x
    x = 8,329,186,853.57/102,128.07
  6. Step 6: Final answer
    x = 81,556.29

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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.