Home / 106,726.23-159,741.81-78,635.07

Finding the Fourth Proportional to 106,726.23, 159,741.81 and 78,635.07

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Solution

The fourth proportional to 106,726.23, 159,741.81 and 78,635.07 is: 117,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,726.23 : 159,741.81 = 78,635.07 : x
  2. Step 2: Convert to fraction form
    106,726.23/159,741.81 = 78,635.07/x
  3. Step 3: Cross multiply
    106,726.23x = 159,741.81 × 78,635.07
  4. Step 4: Simplify right side
    106,726.23x = 12,561,308,411.28
  5. Step 5: Solve for x
    x = 12,561,308,411.28/106,726.23
  6. Step 6: Final answer
    x = 117,696.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.