Home / 160,455.14-221,428.11-87,862.61

Finding the Fourth Proportional to 160,455.14, 221,428.11 and 87,862.61

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Solution

The fourth proportional to 160,455.14, 221,428.11 and 87,862.61 is: 121,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,455.14 : 221,428.11 = 87,862.61 : x
  2. Step 2: Convert to fraction form
    160,455.14/221,428.11 = 87,862.61/x
  3. Step 3: Cross multiply
    160,455.14x = 221,428.11 × 87,862.61
  4. Step 4: Simplify right side
    160,455.14x = 19,455,251,405.89
  5. Step 5: Solve for x
    x = 19,455,251,405.89/160,455.14
  6. Step 6: Final answer
    x = 121,250.41

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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.