Home / 128,884.16-193,280.10-44,621.70

Finding the Fourth Proportional to 128,884.16, 193,280.10 and 44,621.70

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Solution

The fourth proportional to 128,884.16, 193,280.10 and 44,621.70 is: 66,916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884.16 : 193,280.10 = 44,621.70 : x
  2. Step 2: Convert to fraction form
    128,884.16/193,280.10 = 44,621.70/x
  3. Step 3: Cross multiply
    128,884.16x = 193,280.10 × 44,621.70
  4. Step 4: Simplify right side
    128,884.16x = 8,624,486,638.17
  5. Step 5: Solve for x
    x = 8,624,486,638.17/128,884.16
  6. Step 6: Final answer
    x = 66,916.58

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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.