Home / 115,923.82-160,029.65-77,708.35

Finding the Fourth Proportional to 115,923.82, 160,029.65 and 77,708.35

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Solution

The fourth proportional to 115,923.82, 160,029.65 and 77,708.35 is: 107,274.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,923.82 : 160,029.65 = 77,708.35 : x
  2. Step 2: Convert to fraction form
    115,923.82/160,029.65 = 77,708.35/x
  3. Step 3: Cross multiply
    115,923.82x = 160,029.65 × 77,708.35
  4. Step 4: Simplify right side
    115,923.82x = 12,435,639,263.96
  5. Step 5: Solve for x
    x = 12,435,639,263.96/115,923.82
  6. Step 6: Final answer
    x = 107,274.24

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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.