Home / 147,792.15-203,880.09-87,333.54

Finding the Fourth Proportional to 147,792.15, 203,880.09 and 87,333.54

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Solution

The fourth proportional to 147,792.15, 203,880.09 and 87,333.54 is: 120,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,792.15 : 203,880.09 = 87,333.54 : x
  2. Step 2: Convert to fraction form
    147,792.15/203,880.09 = 87,333.54/x
  3. Step 3: Cross multiply
    147,792.15x = 203,880.09 × 87,333.54
  4. Step 4: Simplify right side
    147,792.15x = 17,805,569,995.22
  5. Step 5: Solve for x
    x = 17,805,569,995.22/147,792.15
  6. Step 6: Final answer
    x = 120,477.10

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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.