Home / 142,415.28-213,623.33-53,644.95

Finding the Fourth Proportional to 142,415.28, 213,623.33 and 53,644.95

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Solution

The fourth proportional to 142,415.28, 213,623.33 and 53,644.95 is: 80,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,415.28 : 213,623.33 = 53,644.95 : x
  2. Step 2: Convert to fraction form
    142,415.28/213,623.33 = 53,644.95/x
  3. Step 3: Cross multiply
    142,415.28x = 213,623.33 × 53,644.95
  4. Step 4: Simplify right side
    142,415.28x = 11,459,812,588.46
  5. Step 5: Solve for x
    x = 11,459,812,588.46/142,415.28
  6. Step 6: Final answer
    x = 80,467.58

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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.