Home / 221,457.40-332,186.10-103,140.70

Finding the Fourth Proportional to 221,457.40, 332,186.10 and 103,140.70

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Solution

The fourth proportional to 221,457.40, 332,186.10 and 103,140.70 is: 154,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,457.40 : 332,186.10 = 103,140.70 : x
  2. Step 2: Convert to fraction form
    221,457.40/332,186.10 = 103,140.70/x
  3. Step 3: Cross multiply
    221,457.40x = 332,186.10 × 103,140.70
  4. Step 4: Simplify right side
    221,457.40x = 34,261,906,884.27
  5. Step 5: Solve for x
    x = 34,261,906,884.27/221,457.40
  6. Step 6: Final answer
    x = 154,711.05

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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.