Home / 128,232.90-192,677.40-113,798.70

Finding the Fourth Proportional to 128,232.90, 192,677.40 and 113,798.70

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Solution

The fourth proportional to 128,232.90, 192,677.40 and 113,798.70 is: 170,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,232.90 : 192,677.40 = 113,798.70 : x
  2. Step 2: Convert to fraction form
    128,232.90/192,677.40 = 113,798.70/x
  3. Step 3: Cross multiply
    128,232.90x = 192,677.40 × 113,798.70
  4. Step 4: Simplify right side
    128,232.90x = 21,926,437,639.38
  5. Step 5: Solve for x
    x = 21,926,437,639.38/128,232.90
  6. Step 6: Final answer
    x = 170,989.17

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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.