Home / 147,581.64-203,678.32-90,254.48

Finding the Fourth Proportional to 147,581.64, 203,678.32 and 90,254.48

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Solution

The fourth proportional to 147,581.64, 203,678.32 and 90,254.48 is: 124,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,581.64 : 203,678.32 = 90,254.48 : x
  2. Step 2: Convert to fraction form
    147,581.64/203,678.32 = 90,254.48/x
  3. Step 3: Cross multiply
    147,581.64x = 203,678.32 × 90,254.48
  4. Step 4: Simplify right side
    147,581.64x = 18,382,880,858.87
  5. Step 5: Solve for x
    x = 18,382,880,858.87/147,581.64
  6. Step 6: Final answer
    x = 124,560.76

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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.