Home / 236,871.62-326,887.10-129,446.18

Finding the Fourth Proportional to 236,871.62, 326,887.10 and 129,446.18

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Solution

The fourth proportional to 236,871.62, 326,887.10 and 129,446.18 is: 178,638.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,871.62 : 326,887.10 = 129,446.18 : x
  2. Step 2: Convert to fraction form
    236,871.62/326,887.10 = 129,446.18/x
  3. Step 3: Cross multiply
    236,871.62x = 326,887.10 × 129,446.18
  4. Step 4: Simplify right side
    236,871.62x = 42,314,286,386.28
  5. Step 5: Solve for x
    x = 42,314,286,386.28/236,871.62
  6. Step 6: Final answer
    x = 178,638.06

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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.