Home / 236,342.76-326,154.03-128,915.10

Finding the Fourth Proportional to 236,342.76, 326,154.03 and 128,915.10

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Solution

The fourth proportional to 236,342.76, 326,154.03 and 128,915.10 is: 177,903.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,342.76 : 326,154.03 = 128,915.10 : x
  2. Step 2: Convert to fraction form
    236,342.76/326,154.03 = 128,915.10/x
  3. Step 3: Cross multiply
    236,342.76x = 326,154.03 × 128,915.10
  4. Step 4: Simplify right side
    236,342.76x = 42,046,179,392.85
  5. Step 5: Solve for x
    x = 42,046,179,392.85/236,342.76
  6. Step 6: Final answer
    x = 177,903.40

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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.