Home / 100,960.62-139,313.55-57,937.74

Finding the Fourth Proportional to 100,960.62, 139,313.55 and 57,937.74

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Solution

The fourth proportional to 100,960.62, 139,313.55 and 57,937.74 is: 79,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,960.62 : 139,313.55 = 57,937.74 : x
  2. Step 2: Convert to fraction form
    100,960.62/139,313.55 = 57,937.74/x
  3. Step 3: Cross multiply
    100,960.62x = 139,313.55 × 57,937.74
  4. Step 4: Simplify right side
    100,960.62x = 8,071,512,238.38
  5. Step 5: Solve for x
    x = 8,071,512,238.38/100,960.62
  6. Step 6: Final answer
    x = 79,947.13

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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.