Home / 236,239.78-326,155.63-145,719.51

Finding the Fourth Proportional to 236,239.78, 326,155.63 and 145,719.51

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Solution

The fourth proportional to 236,239.78, 326,155.63 and 145,719.51 is: 201,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,239.78 : 326,155.63 = 145,719.51 : x
  2. Step 2: Convert to fraction form
    236,239.78/326,155.63 = 145,719.51/x
  3. Step 3: Cross multiply
    236,239.78x = 326,155.63 × 145,719.51
  4. Step 4: Simplify right side
    236,239.78x = 47,527,236,658.43
  5. Step 5: Solve for x
    x = 47,527,236,658.43/236,239.78
  6. Step 6: Final answer
    x = 201,182.19

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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.