Home / 217,639.08-326,347.48-127,857.16

Finding the Fourth Proportional to 217,639.08, 326,347.48 and 127,857.16

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Solution

The fourth proportional to 217,639.08, 326,347.48 and 127,857.16 is: 191,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,639.08 : 326,347.48 = 127,857.16 : x
  2. Step 2: Convert to fraction form
    217,639.08/326,347.48 = 127,857.16/x
  3. Step 3: Cross multiply
    217,639.08x = 326,347.48 × 127,857.16
  4. Step 4: Simplify right side
    217,639.08x = 41,725,861,965.96
  5. Step 5: Solve for x
    x = 41,725,861,965.96/217,639.08
  6. Step 6: Final answer
    x = 191,720.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.