Home / 236,645.85-326,569.98-129,215.12

Finding the Fourth Proportional to 236,645.85, 326,569.98 and 129,215.12

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Solution

The fourth proportional to 236,645.85, 326,569.98 and 129,215.12 is: 178,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,645.85 : 326,569.98 = 129,215.12 : x
  2. Step 2: Convert to fraction form
    236,645.85/326,569.98 = 129,215.12/x
  3. Step 3: Cross multiply
    236,645.85x = 326,569.98 × 129,215.12
  4. Step 4: Simplify right side
    236,645.85x = 42,197,780,034.40
  5. Step 5: Solve for x
    x = 42,197,780,034.40/236,645.85
  6. Step 6: Final answer
    x = 178,316.16

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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.