Home / 139,274.49-192,199.73-75,612.63

Finding the Fourth Proportional to 139,274.49, 192,199.73 and 75,612.63

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Solution

The fourth proportional to 139,274.49, 192,199.73 and 75,612.63 is: 104,345.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,274.49 : 192,199.73 = 75,612.63 : x
  2. Step 2: Convert to fraction form
    139,274.49/192,199.73 = 75,612.63/x
  3. Step 3: Cross multiply
    139,274.49x = 192,199.73 × 75,612.63
  4. Step 4: Simplify right side
    139,274.49x = 14,532,726,692.53
  5. Step 5: Solve for x
    x = 14,532,726,692.53/139,274.49
  6. Step 6: Final answer
    x = 104,345.93

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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.