Home / 236,553.60-326,432.16-129,128.16

Finding the Fourth Proportional to 236,553.60, 326,432.16 and 129,128.16

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Solution

The fourth proportional to 236,553.60, 326,432.16 and 129,128.16 is: 178,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,553.60 : 326,432.16 = 129,128.16 : x
  2. Step 2: Convert to fraction form
    236,553.60/326,432.16 = 129,128.16/x
  3. Step 3: Cross multiply
    236,553.60x = 326,432.16 × 129,128.16
  4. Step 4: Simplify right side
    236,553.60x = 42,151,584,185.63
  5. Step 5: Solve for x
    x = 42,151,584,185.63/236,553.60
  6. Step 6: Final answer
    x = 178,190.42

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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.