Home / 89,159,709.12-133,739,563.68-71,322,187.20

Finding the Fourth Proportional to 89,159,709.12, 133,739,563.68 and 71,322,187.20

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Solution

The fourth proportional to 89,159,709.12, 133,739,563.68 and 71,322,187.20 is: 106,983,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,159,709.12 : 133,739,563.68 = 71,322,187.20 : x
  2. Step 2: Convert to fraction form
    89,159,709.12/133,739,563.68 = 71,322,187.20/x
  3. Step 3: Cross multiply
    89,159,709.12x = 133,739,563.68 × 71,322,187.20
  4. Step 4: Simplify right side
    89,159,709.12x = 9,538,598,196,831,282
  5. Step 5: Solve for x
    x = 9,538,598,196,831,282/89,159,709.12
  6. Step 6: Final answer
    x = 106,983,280.80

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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.