Home / 147,857.20-221,785.80-122,925.40

Finding the Fourth Proportional to 147,857.20, 221,785.80 and 122,925.40

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Solution

The fourth proportional to 147,857.20, 221,785.80 and 122,925.40 is: 184,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,857.20 : 221,785.80 = 122,925.40 : x
  2. Step 2: Convert to fraction form
    147,857.20/221,785.80 = 122,925.40/x
  3. Step 3: Cross multiply
    147,857.20x = 221,785.80 × 122,925.40
  4. Step 4: Simplify right side
    147,857.20x = 27,263,108,179.32
  5. Step 5: Solve for x
    x = 27,263,108,179.32/147,857.20
  6. Step 6: Final answer
    x = 184,388.10

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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.