Home / 147,332.12-221,129.39-68,490.77

Finding the Fourth Proportional to 147,332.12, 221,129.39 and 68,490.77

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Solution

The fourth proportional to 147,332.12, 221,129.39 and 68,490.77 is: 102,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,332.12 : 221,129.39 = 68,490.77 : x
  2. Step 2: Convert to fraction form
    147,332.12/221,129.39 = 68,490.77/x
  3. Step 3: Cross multiply
    147,332.12x = 221,129.39 × 68,490.77
  4. Step 4: Simplify right side
    147,332.12x = 15,145,321,256.31
  5. Step 5: Solve for x
    x = 15,145,321,256.31/147,332.12
  6. Step 6: Final answer
    x = 102,797.15

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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.