Home / 128,155.34-192,233.08-33,385.28

Finding the Fourth Proportional to 128,155.34, 192,233.08 and 33,385.28

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Solution

The fourth proportional to 128,155.34, 192,233.08 and 33,385.28 is: 50,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,155.34 : 192,233.08 = 33,385.28 : x
  2. Step 2: Convert to fraction form
    128,155.34/192,233.08 = 33,385.28/x
  3. Step 3: Cross multiply
    128,155.34x = 192,233.08 × 33,385.28
  4. Step 4: Simplify right side
    128,155.34x = 6,417,754,281.63
  5. Step 5: Solve for x
    x = 6,417,754,281.63/128,155.34
  6. Step 6: Final answer
    x = 50,077.93

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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.