Home / 236,153.17-325,894.77-128,723.20

Finding the Fourth Proportional to 236,153.17, 325,894.77 and 128,723.20

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Solution

The fourth proportional to 236,153.17, 325,894.77 and 128,723.20 is: 177,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,153.17 : 325,894.77 = 128,723.20 : x
  2. Step 2: Convert to fraction form
    236,153.17/325,894.77 = 128,723.20/x
  3. Step 3: Cross multiply
    236,153.17x = 325,894.77 × 128,723.20
  4. Step 4: Simplify right side
    236,153.17x = 41,950,217,397.47
  5. Step 5: Solve for x
    x = 41,950,217,397.47/236,153.17
  6. Step 6: Final answer
    x = 177,639.86

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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.