Home / 148,255.64-204,509.80-87,767.28

Finding the Fourth Proportional to 148,255.64, 204,509.80 and 87,767.28

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Solution

The fourth proportional to 148,255.64, 204,509.80 and 87,767.28 is: 121,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,255.64 : 204,509.80 = 87,767.28 : x
  2. Step 2: Convert to fraction form
    148,255.64/204,509.80 = 87,767.28/x
  3. Step 3: Cross multiply
    148,255.64x = 204,509.80 × 87,767.28
  4. Step 4: Simplify right side
    148,255.64x = 17,949,268,879.34
  5. Step 5: Solve for x
    x = 17,949,268,879.34/148,255.64
  6. Step 6: Final answer
    x = 121,069.72

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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.