Home / 405,664.81-608,531.84-106,145.13

Finding the Fourth Proportional to 405,664.81, 608,531.84 and 106,145.13

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Solution

The fourth proportional to 405,664.81, 608,531.84 and 106,145.13 is: 159,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,664.81 : 608,531.84 = 106,145.13 : x
  2. Step 2: Convert to fraction form
    405,664.81/608,531.84 = 106,145.13/x
  3. Step 3: Cross multiply
    405,664.81x = 608,531.84 × 106,145.13
  4. Step 4: Simplify right side
    405,664.81x = 64,592,693,415.25
  5. Step 5: Solve for x
    x = 64,592,693,415.25/405,664.81
  6. Step 6: Final answer
    x = 159,226.76

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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.