Home / 147,051.90-220,140.45-87,857.10

Finding the Fourth Proportional to 147,051.90, 220,140.45 and 87,857.10

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Solution

The fourth proportional to 147,051.90, 220,140.45 and 87,857.10 is: 131,524.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,051.90 : 220,140.45 = 87,857.10 : x
  2. Step 2: Convert to fraction form
    147,051.90/220,140.45 = 87,857.10/x
  3. Step 3: Cross multiply
    147,051.90x = 220,140.45 × 87,857.10
  4. Step 4: Simplify right side
    147,051.90x = 19,340,901,529.70
  5. Step 5: Solve for x
    x = 19,340,901,529.70/147,051.90
  6. Step 6: Final answer
    x = 131,524.32

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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.