Home / 236,043.65-325,740.29-128,613.70

Finding the Fourth Proportional to 236,043.65, 325,740.29 and 128,613.70

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Solution

The fourth proportional to 236,043.65, 325,740.29 and 128,613.70 is: 177,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,043.65 : 325,740.29 = 128,613.70 : x
  2. Step 2: Convert to fraction form
    236,043.65/325,740.29 = 128,613.70/x
  3. Step 3: Cross multiply
    236,043.65x = 325,740.29 × 128,613.70
  4. Step 4: Simplify right side
    236,043.65x = 41,894,663,700.08
  5. Step 5: Solve for x
    x = 41,894,663,700.08/236,043.65
  6. Step 6: Final answer
    x = 177,486.93

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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.