Home / 157,623.85-217,600.23-100,320.85

Finding the Fourth Proportional to 157,623.85, 217,600.23 and 100,320.85

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Solution

The fourth proportional to 157,623.85, 217,600.23 and 100,320.85 is: 138,493.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,623.85 : 217,600.23 = 100,320.85 : x
  2. Step 2: Convert to fraction form
    157,623.85/217,600.23 = 100,320.85/x
  3. Step 3: Cross multiply
    157,623.85x = 217,600.23 × 100,320.85
  4. Step 4: Simplify right side
    157,623.85x = 21,829,840,033.80
  5. Step 5: Solve for x
    x = 21,829,840,033.80/157,623.85
  6. Step 6: Final answer
    x = 138,493.25

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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.