Home / 157,890.50-217,986.09-101,401.46

Finding the Fourth Proportional to 157,890.50, 217,986.09 and 101,401.46

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Solution

The fourth proportional to 157,890.50, 217,986.09 and 101,401.46 is: 139,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,890.50 : 217,986.09 = 101,401.46 : x
  2. Step 2: Convert to fraction form
    157,890.50/217,986.09 = 101,401.46/x
  3. Step 3: Cross multiply
    157,890.50x = 217,986.09 × 101,401.46
  4. Step 4: Simplify right side
    157,890.50x = 22,104,107,785.69
  5. Step 5: Solve for x
    x = 22,104,107,785.69/157,890.50
  6. Step 6: Final answer
    x = 139,996.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.