Home / 139,518.80-192,530.68-75,854.40

Finding the Fourth Proportional to 139,518.80, 192,530.68 and 75,854.40

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Solution

The fourth proportional to 139,518.80, 192,530.68 and 75,854.40 is: 104,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,518.80 : 192,530.68 = 75,854.40 : x
  2. Step 2: Convert to fraction form
    139,518.80/192,530.68 = 75,854.40/x
  3. Step 3: Cross multiply
    139,518.80x = 192,530.68 × 75,854.40
  4. Step 4: Simplify right side
    139,518.80x = 14,604,299,212.99
  5. Step 5: Solve for x
    x = 14,604,299,212.99/139,518.80
  6. Step 6: Final answer
    x = 104,676.21

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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.