Home / 99,457.17-149,190.66-28,390.25

Finding the Fourth Proportional to 99,457.17, 149,190.66 and 28,390.25

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Solution

The fourth proportional to 99,457.17, 149,190.66 and 28,390.25 is: 42,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,457.17 : 149,190.66 = 28,390.25 : x
  2. Step 2: Convert to fraction form
    99,457.17/149,190.66 = 28,390.25/x
  3. Step 3: Cross multiply
    99,457.17x = 149,190.66 × 28,390.25
  4. Step 4: Simplify right side
    99,457.17x = 4,235,559,389.11
  5. Step 5: Solve for x
    x = 4,235,559,389.11/99,457.17
  6. Step 6: Final answer
    x = 42,586.77

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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.