Home / 142,455.33-213,732.14-53,734.23

Finding the Fourth Proportional to 142,455.33, 213,732.14 and 53,734.23

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Solution

The fourth proportional to 142,455.33, 213,732.14 and 53,734.23 is: 80,619.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,455.33 : 213,732.14 = 53,734.23 : x
  2. Step 2: Convert to fraction form
    142,455.33/213,732.14 = 53,734.23/x
  3. Step 3: Cross multiply
    142,455.33x = 213,732.14 × 53,734.23
  4. Step 4: Simplify right side
    142,455.33x = 11,484,731,700.48
  5. Step 5: Solve for x
    x = 11,484,731,700.48/142,455.33
  6. Step 6: Final answer
    x = 80,619.88

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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.