Home / 102,903.68-142,003.20-58,192.64

Finding the Fourth Proportional to 102,903.68, 142,003.20 and 58,192.64

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Solution

The fourth proportional to 102,903.68, 142,003.20 and 58,192.64 is: 80,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,903.68 : 142,003.20 = 58,192.64 : x
  2. Step 2: Convert to fraction form
    102,903.68/142,003.20 = 58,192.64/x
  3. Step 3: Cross multiply
    102,903.68x = 142,003.20 × 58,192.64
  4. Step 4: Simplify right side
    102,903.68x = 8,263,541,096.45
  5. Step 5: Solve for x
    x = 8,263,541,096.45/102,903.68
  6. Step 6: Final answer
    x = 80,303.65

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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.