Home / 145,972.53-201,450.04-81,456.03

Finding the Fourth Proportional to 145,972.53, 201,450.04 and 81,456.03

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Solution

The fourth proportional to 145,972.53, 201,450.04 and 81,456.03 is: 112,413.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.53 : 201,450.04 = 81,456.03 : x
  2. Step 2: Convert to fraction form
    145,972.53/201,450.04 = 81,456.03/x
  3. Step 3: Cross multiply
    145,972.53x = 201,450.04 × 81,456.03
  4. Step 4: Simplify right side
    145,972.53x = 16,409,320,298.10
  5. Step 5: Solve for x
    x = 16,409,320,298.10/145,972.53
  6. Step 6: Final answer
    x = 112,413.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.