Home / 236,345.82-326,161.65-128,919.71

Finding the Fourth Proportional to 236,345.82, 326,161.65 and 128,919.71

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Solution

The fourth proportional to 236,345.82, 326,161.65 and 128,919.71 is: 177,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,345.82 : 326,161.65 = 128,919.71 : x
  2. Step 2: Convert to fraction form
    236,345.82/326,161.65 = 128,919.71/x
  3. Step 3: Cross multiply
    236,345.82x = 326,161.65 × 128,919.71
  4. Step 4: Simplify right side
    236,345.82x = 42,048,663,700.31
  5. Step 5: Solve for x
    x = 42,048,663,700.31/236,345.82
  6. Step 6: Final answer
    x = 177,911.60

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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.