Home / 236,111.68-325,824.63-128,679.40

Finding the Fourth Proportional to 236,111.68, 325,824.63 and 128,679.40

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Solution

The fourth proportional to 236,111.68, 325,824.63 and 128,679.40 is: 177,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,111.68 : 325,824.63 = 128,679.40 : x
  2. Step 2: Convert to fraction form
    236,111.68/325,824.63 = 128,679.40/x
  3. Step 3: Cross multiply
    236,111.68x = 325,824.63 × 128,679.40
  4. Step 4: Simplify right side
    236,111.68x = 41,926,917,818.36
  5. Step 5: Solve for x
    x = 41,926,917,818.36/236,111.68
  6. Step 6: Final answer
    x = 177,572.40

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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.