Home / 143,552.43-198,108.86-83,125.71

Finding the Fourth Proportional to 143,552.43, 198,108.86 and 83,125.71

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Solution

The fourth proportional to 143,552.43, 198,108.86 and 83,125.71 is: 114,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,552.43 : 198,108.86 = 83,125.71 : x
  2. Step 2: Convert to fraction form
    143,552.43/198,108.86 = 83,125.71/x
  3. Step 3: Cross multiply
    143,552.43x = 198,108.86 × 83,125.71
  4. Step 4: Simplify right side
    143,552.43x = 16,467,939,644.79
  5. Step 5: Solve for x
    x = 16,467,939,644.79/143,552.43
  6. Step 6: Final answer
    x = 114,717.25

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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.