Home / 139,370.85-192,331.98-75,708.63

Finding the Fourth Proportional to 139,370.85, 192,331.98 and 75,708.63

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Solution

The fourth proportional to 139,370.85, 192,331.98 and 75,708.63 is: 104,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,370.85 : 192,331.98 = 75,708.63 : x
  2. Step 2: Convert to fraction form
    139,370.85/192,331.98 = 75,708.63/x
  3. Step 3: Cross multiply
    139,370.85x = 192,331.98 × 75,708.63
  4. Step 4: Simplify right side
    139,370.85x = 14,561,190,710.99
  5. Step 5: Solve for x
    x = 14,561,190,710.99/139,370.85
  6. Step 6: Final answer
    x = 104,478.02

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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.