Home / 147,043.40-220,127.70-87,848.60

Finding the Fourth Proportional to 147,043.40, 220,127.70 and 87,848.60

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Solution

The fourth proportional to 147,043.40, 220,127.70 and 87,848.60 is: 131,511.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,043.40 : 220,127.70 = 87,848.60 : x
  2. Step 2: Convert to fraction form
    147,043.40/220,127.70 = 87,848.60/x
  3. Step 3: Cross multiply
    147,043.40x = 220,127.70 × 87,848.60
  4. Step 4: Simplify right side
    147,043.40x = 19,337,910,266.22
  5. Step 5: Solve for x
    x = 19,337,910,266.22/147,043.40
  6. Step 6: Final answer
    x = 131,511.58

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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.