Home / 99,583.10-149,374.65-91,709.90

Finding the Fourth Proportional to 99,583.10, 149,374.65 and 91,709.90

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Solution

The fourth proportional to 99,583.10, 149,374.65 and 91,709.90 is: 137,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,583.10 : 149,374.65 = 91,709.90 : x
  2. Step 2: Convert to fraction form
    99,583.10/149,374.65 = 91,709.90/x
  3. Step 3: Cross multiply
    99,583.10x = 149,374.65 × 91,709.90
  4. Step 4: Simplify right side
    99,583.10x = 13,699,134,214.04
  5. Step 5: Solve for x
    x = 13,699,134,214.04/99,583.10
  6. Step 6: Final answer
    x = 137,564.85

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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.