Home / 128,452.10-177,433.31-98,606.23

Finding the Fourth Proportional to 128,452.10, 177,433.31 and 98,606.23

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Solution

The fourth proportional to 128,452.10, 177,433.31 and 98,606.23 is: 136,206.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,452.10 : 177,433.31 = 98,606.23 : x
  2. Step 2: Convert to fraction form
    128,452.10/177,433.31 = 98,606.23/x
  3. Step 3: Cross multiply
    128,452.10x = 177,433.31 × 98,606.23
  4. Step 4: Simplify right side
    128,452.10x = 17,496,029,578.45
  5. Step 5: Solve for x
    x = 17,496,029,578.45/128,452.10
  6. Step 6: Final answer
    x = 136,206.65

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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.