Home / 128,248.16-192,392.92-39,501.64

Finding the Fourth Proportional to 128,248.16, 192,392.92 and 39,501.64

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Solution

The fourth proportional to 128,248.16, 192,392.92 and 39,501.64 is: 59,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,248.16 : 192,392.92 = 39,501.64 : x
  2. Step 2: Convert to fraction form
    128,248.16/192,392.92 = 39,501.64/x
  3. Step 3: Cross multiply
    128,248.16x = 192,392.92 × 39,501.64
  4. Step 4: Simplify right side
    128,248.16x = 7,599,835,864.39
  5. Step 5: Solve for x
    x = 7,599,835,864.39/128,248.16
  6. Step 6: Final answer
    x = 59,258.83

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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.