Home / 128,932.34-193,398.24-72,746.96

Finding the Fourth Proportional to 128,932.34, 193,398.24 and 72,746.96

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Solution

The fourth proportional to 128,932.34, 193,398.24 and 72,746.96 is: 109,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,932.34 : 193,398.24 = 72,746.96 : x
  2. Step 2: Convert to fraction form
    128,932.34/193,398.24 = 72,746.96/x
  3. Step 3: Cross multiply
    128,932.34x = 193,398.24 × 72,746.96
  4. Step 4: Simplify right side
    128,932.34x = 14,069,134,029.35
  5. Step 5: Solve for x
    x = 14,069,134,029.35/128,932.34
  6. Step 6: Final answer
    x = 109,120.29

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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.