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Finding the Fourth Proportional to 115,763.90, 159,703.48 and 67,995.71

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Solution

The fourth proportional to 115,763.90, 159,703.48 and 67,995.71 is: 93,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,763.90 : 159,703.48 = 67,995.71 : x
  2. Step 2: Convert to fraction form
    115,763.90/159,703.48 = 67,995.71/x
  3. Step 3: Cross multiply
    115,763.90x = 159,703.48 × 67,995.71
  4. Step 4: Simplify right side
    115,763.90x = 10,859,150,543.56
  5. Step 5: Solve for x
    x = 10,859,150,543.56/115,763.90
  6. Step 6: Final answer
    x = 93,804.29

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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.