Home / 128,336.32-192,526.40-39,588.16

Finding the Fourth Proportional to 128,336.32, 192,526.40 and 39,588.16

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Solution

The fourth proportional to 128,336.32, 192,526.40 and 39,588.16 is: 59,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,336.32 : 192,526.40 = 39,588.16 : x
  2. Step 2: Convert to fraction form
    128,336.32/192,526.40 = 39,588.16/x
  3. Step 3: Cross multiply
    128,336.32x = 192,526.40 × 39,588.16
  4. Step 4: Simplify right side
    128,336.32x = 7,621,765,927.42
  5. Step 5: Solve for x
    x = 7,621,765,927.42/128,336.32
  6. Step 6: Final answer
    x = 59,389.00

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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.