Home / 103,507.94-155,107.85-53,521.34

Finding the Fourth Proportional to 103,507.94, 155,107.85 and 53,521.34

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Solution

The fourth proportional to 103,507.94, 155,107.85 and 53,521.34 is: 80,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,507.94 : 155,107.85 = 53,521.34 : x
  2. Step 2: Convert to fraction form
    103,507.94/155,107.85 = 53,521.34/x
  3. Step 3: Cross multiply
    103,507.94x = 155,107.85 × 53,521.34
  4. Step 4: Simplify right side
    103,507.94x = 8,301,578,933.37
  5. Step 5: Solve for x
    x = 8,301,578,933.37/103,507.94
  6. Step 6: Final answer
    x = 80,202.34

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1.5x scale

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.