Home / 115,870.06-159,818.08-106,340.66

Finding the Fourth Proportional to 115,870.06, 159,818.08 and 106,340.66

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Solution

The fourth proportional to 115,870.06, 159,818.08 and 106,340.66 is: 146,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,870.06 : 159,818.08 = 106,340.66 : x
  2. Step 2: Convert to fraction form
    115,870.06/159,818.08 = 106,340.66/x
  3. Step 3: Cross multiply
    115,870.06x = 159,818.08 × 106,340.66
  4. Step 4: Simplify right side
    115,870.06x = 16,995,160,739.87
  5. Step 5: Solve for x
    x = 16,995,160,739.87/115,870.06
  6. Step 6: Final answer
    x = 146,674.31

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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.