Home / 421,966.08-632,927.16-106,425.72

Finding the Fourth Proportional to 421,966.08, 632,927.16 and 106,425.72

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Solution

The fourth proportional to 421,966.08, 632,927.16 and 106,425.72 is: 159,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,966.08 : 632,927.16 = 106,425.72 : x
  2. Step 2: Convert to fraction form
    421,966.08/632,927.16 = 106,425.72/x
  3. Step 3: Cross multiply
    421,966.08x = 632,927.16 × 106,425.72
  4. Step 4: Simplify right side
    421,966.08x = 67,359,728,710.56
  5. Step 5: Solve for x
    x = 67,359,728,710.56/421,966.08
  6. Step 6: Final answer
    x = 159,633.04

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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.