Home / 236,359.60-326,164.26-128,928.76

Finding the Fourth Proportional to 236,359.60, 326,164.26 and 128,928.76

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Solution

The fourth proportional to 236,359.60, 326,164.26 and 128,928.76 is: 177,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,359.60 : 326,164.26 = 128,928.76 : x
  2. Step 2: Convert to fraction form
    236,359.60/326,164.26 = 128,928.76/x
  3. Step 3: Cross multiply
    236,359.60x = 326,164.26 × 128,928.76
  4. Step 4: Simplify right side
    236,359.60x = 42,051,953,598.12
  5. Step 5: Solve for x
    x = 42,051,953,598.12/236,359.60
  6. Step 6: Final answer
    x = 177,915.15

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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.