Home / 236,611.64-326,521.59-129,181.34

Finding the Fourth Proportional to 236,611.64, 326,521.59 and 129,181.34

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Solution

The fourth proportional to 236,611.64, 326,521.59 and 129,181.34 is: 178,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,611.64 : 326,521.59 = 129,181.34 : x
  2. Step 2: Convert to fraction form
    236,611.64/326,521.59 = 129,181.34/x
  3. Step 3: Cross multiply
    236,611.64x = 326,521.59 × 129,181.34
  4. Step 4: Simplify right side
    236,611.64x = 42,180,496,535.13
  5. Step 5: Solve for x
    x = 42,180,496,535.13/236,611.64
  6. Step 6: Final answer
    x = 178,268.90

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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.