Home / 236,911.40-326,932.87-129,482.20

Finding the Fourth Proportional to 236,911.40, 326,932.87 and 129,482.20

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Solution

The fourth proportional to 236,911.40, 326,932.87 and 129,482.20 is: 178,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,911.40 : 326,932.87 = 129,482.20 : x
  2. Step 2: Convert to fraction form
    236,911.40/326,932.87 = 129,482.20/x
  3. Step 3: Cross multiply
    236,911.40x = 326,932.87 × 129,482.20
  4. Step 4: Simplify right side
    236,911.40x = 42,331,984,977.84
  5. Step 5: Solve for x
    x = 42,331,984,977.84/236,911.40
  6. Step 6: Final answer
    x = 178,682.77

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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.