Home / 109,812.54-151,428.16-93,949.50

Finding the Fourth Proportional to 109,812.54, 151,428.16 and 93,949.50

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Solution

The fourth proportional to 109,812.54, 151,428.16 and 93,949.50 is: 129,553.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,812.54 : 151,428.16 = 93,949.50 : x
  2. Step 2: Convert to fraction form
    109,812.54/151,428.16 = 93,949.50/x
  3. Step 3: Cross multiply
    109,812.54x = 151,428.16 × 93,949.50
  4. Step 4: Simplify right side
    109,812.54x = 14,226,599,917.92
  5. Step 5: Solve for x
    x = 14,226,599,917.92/109,812.54
  6. Step 6: Final answer
    x = 129,553.51

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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.