Home / 142,226.30-213,347.64-53,480.57

Finding the Fourth Proportional to 142,226.30, 213,347.64 and 53,480.57

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Solution

The fourth proportional to 142,226.30, 213,347.64 and 53,480.57 is: 80,223.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,226.30 : 213,347.64 = 53,480.57 : x
  2. Step 2: Convert to fraction form
    142,226.30/213,347.64 = 53,480.57/x
  3. Step 3: Cross multiply
    142,226.30x = 213,347.64 × 53,480.57
  4. Step 4: Simplify right side
    142,226.30x = 11,409,953,795.02
  5. Step 5: Solve for x
    x = 11,409,953,795.02/142,226.30
  6. Step 6: Final answer
    x = 80,223.94

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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.