Home / 137,348.64-189,525.10-80,000.52

Finding the Fourth Proportional to 137,348.64, 189,525.10 and 80,000.52

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Solution

The fourth proportional to 137,348.64, 189,525.10 and 80,000.52 is: 110,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,348.64 : 189,525.10 = 80,000.52 : x
  2. Step 2: Convert to fraction form
    137,348.64/189,525.10 = 80,000.52/x
  3. Step 3: Cross multiply
    137,348.64x = 189,525.10 × 80,000.52
  4. Step 4: Simplify right side
    137,348.64x = 15,162,106,553.05
  5. Step 5: Solve for x
    x = 15,162,106,553.05/137,348.64
  6. Step 6: Final answer
    x = 110,391.38

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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.