Home / 93,395.20-139,186.92-90,406.48

Finding the Fourth Proportional to 93,395.20, 139,186.92 and 90,406.48

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Solution

The fourth proportional to 93,395.20, 139,186.92 and 90,406.48 is: 134,732.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,395.20 : 139,186.92 = 90,406.48 : x
  2. Step 2: Convert to fraction form
    93,395.20/139,186.92 = 90,406.48/x
  3. Step 3: Cross multiply
    93,395.20x = 139,186.92 × 90,406.48
  4. Step 4: Simplify right side
    93,395.20x = 12,583,399,499.24
  5. Step 5: Solve for x
    x = 12,583,399,499.24/93,395.20
  6. Step 6: Final answer
    x = 134,732.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.