Home / 192,002.20-288,003.30-139,125.40

Finding the Fourth Proportional to 192,002.20, 288,003.30 and 139,125.40

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Solution

The fourth proportional to 192,002.20, 288,003.30 and 139,125.40 is: 208,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,002.20 : 288,003.30 = 139,125.40 : x
  2. Step 2: Convert to fraction form
    192,002.20/288,003.30 = 139,125.40/x
  3. Step 3: Cross multiply
    192,002.20x = 288,003.30 × 139,125.40
  4. Step 4: Simplify right side
    192,002.20x = 40,068,574,313.82
  5. Step 5: Solve for x
    x = 40,068,574,313.82/192,002.20
  6. Step 6: Final answer
    x = 208,688.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.