Home / 147,659.31-221,390.54-71,737.60

Finding the Fourth Proportional to 147,659.31, 221,390.54 and 71,737.60

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Solution

The fourth proportional to 147,659.31, 221,390.54 and 71,737.60 is: 107,558.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,659.31 : 221,390.54 = 71,737.60 : x
  2. Step 2: Convert to fraction form
    147,659.31/221,390.54 = 71,737.60/x
  3. Step 3: Cross multiply
    147,659.31x = 221,390.54 × 71,737.60
  4. Step 4: Simplify right side
    147,659.31x = 15,882,026,002.30
  5. Step 5: Solve for x
    x = 15,882,026,002.30/147,659.31
  6. Step 6: Final answer
    x = 107,558.58

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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.