Home / 235,827.42-325,443.51-128,397.66

Finding the Fourth Proportional to 235,827.42, 325,443.51 and 128,397.66

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Solution

The fourth proportional to 235,827.42, 325,443.51 and 128,397.66 is: 177,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,827.42 : 325,443.51 = 128,397.66 : x
  2. Step 2: Convert to fraction form
    235,827.42/325,443.51 = 128,397.66/x
  3. Step 3: Cross multiply
    235,827.42x = 325,443.51 × 128,397.66
  4. Step 4: Simplify right side
    235,827.42x = 41,786,185,146.19
  5. Step 5: Solve for x
    x = 41,786,185,146.19/235,827.42
  6. Step 6: Final answer
    x = 177,189.68

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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.