Home / 157,457.70-236,115.47-45,112.21

Finding the Fourth Proportional to 157,457.70, 236,115.47 and 45,112.21

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Solution

The fourth proportional to 157,457.70, 236,115.47 and 45,112.21 is: 67,647.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,457.70 : 236,115.47 = 45,112.21 : x
  2. Step 2: Convert to fraction form
    157,457.70/236,115.47 = 45,112.21/x
  3. Step 3: Cross multiply
    157,457.70x = 236,115.47 × 45,112.21
  4. Step 4: Simplify right side
    157,457.70x = 10,651,690,189.38
  5. Step 5: Solve for x
    x = 10,651,690,189.38/157,457.70
  6. Step 6: Final answer
    x = 67,647.95

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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.