Home / 100,755.74-139,060.32-58,337.66

Finding the Fourth Proportional to 100,755.74, 139,060.32 and 58,337.66

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Solution

The fourth proportional to 100,755.74, 139,060.32 and 58,337.66 is: 80,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,755.74 : 139,060.32 = 58,337.66 : x
  2. Step 2: Convert to fraction form
    100,755.74/139,060.32 = 58,337.66/x
  3. Step 3: Cross multiply
    100,755.74x = 139,060.32 × 58,337.66
  4. Step 4: Simplify right side
    100,755.74x = 8,112,453,667.65
  5. Step 5: Solve for x
    x = 8,112,453,667.65/100,755.74
  6. Step 6: Final answer
    x = 80,516.04

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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.