Home / 93,330.20-139,995.30-81,666.20

Finding the Fourth Proportional to 93,330.20, 139,995.30 and 81,666.20

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Solution

The fourth proportional to 93,330.20, 139,995.30 and 81,666.20 is: 122,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,330.20 : 139,995.30 = 81,666.20 : x
  2. Step 2: Convert to fraction form
    93,330.20/139,995.30 = 81,666.20/x
  3. Step 3: Cross multiply
    93,330.20x = 139,995.30 × 81,666.20
  4. Step 4: Simplify right side
    93,330.20x = 11,432,884,168.86
  5. Step 5: Solve for x
    x = 11,432,884,168.86/93,330.20
  6. Step 6: Final answer
    x = 122,499.30

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Similar ratio
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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.