Home / 103,464.89-155,118.64-53,513.13

Finding the Fourth Proportional to 103,464.89, 155,118.64 and 53,513.13

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Solution

The fourth proportional to 103,464.89, 155,118.64 and 53,513.13 is: 80,228.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,464.89 : 155,118.64 = 53,513.13 : x
  2. Step 2: Convert to fraction form
    103,464.89/155,118.64 = 53,513.13/x
  3. Step 3: Cross multiply
    103,464.89x = 155,118.64 × 53,513.13
  4. Step 4: Simplify right side
    103,464.89x = 8,300,883,947.74
  5. Step 5: Solve for x
    x = 8,300,883,947.74/103,464.89
  6. Step 6: Final answer
    x = 80,228.99

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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.