Home / 128,228.16-192,318.08-34,721.60

Finding the Fourth Proportional to 128,228.16, 192,318.08 and 34,721.60

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Solution

The fourth proportional to 128,228.16, 192,318.08 and 34,721.60 is: 52,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,228.16 : 192,318.08 = 34,721.60 : x
  2. Step 2: Convert to fraction form
    128,228.16/192,318.08 = 34,721.60/x
  3. Step 3: Cross multiply
    128,228.16x = 192,318.08 × 34,721.60
  4. Step 4: Simplify right side
    128,228.16x = 6,677,591,446.53
  5. Step 5: Solve for x
    x = 6,677,591,446.53/128,228.16
  6. Step 6: Final answer
    x = 52,075.86

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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.