Home / 236,367.45-326,186.53-128,937.49

Finding the Fourth Proportional to 236,367.45, 326,186.53 and 128,937.49

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Solution

The fourth proportional to 236,367.45, 326,186.53 and 128,937.49 is: 177,933.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,367.45 : 326,186.53 = 128,937.49 : x
  2. Step 2: Convert to fraction form
    236,367.45/326,186.53 = 128,937.49/x
  3. Step 3: Cross multiply
    236,367.45x = 326,186.53 × 128,937.49
  4. Step 4: Simplify right side
    236,367.45x = 42,057,671,312.20
  5. Step 5: Solve for x
    x = 42,057,671,312.20/236,367.45
  6. Step 6: Final answer
    x = 177,933.43

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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.