Home / 139,623.84-192,679.80-75,961.49

Finding the Fourth Proportional to 139,623.84, 192,679.80 and 75,961.49

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Solution

The fourth proportional to 139,623.84, 192,679.80 and 75,961.49 is: 104,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,623.84 : 192,679.80 = 75,961.49 : x
  2. Step 2: Convert to fraction form
    139,623.84/192,679.80 = 75,961.49/x
  3. Step 3: Cross multiply
    139,623.84x = 192,679.80 × 75,961.49
  4. Step 4: Simplify right side
    139,623.84x = 14,636,243,737.50
  5. Step 5: Solve for x
    x = 14,636,243,737.50/139,623.84
  6. Step 6: Final answer
    x = 104,826.25

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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.