Home / 110,376.51-152,322.84-78,168.75

Finding the Fourth Proportional to 110,376.51, 152,322.84 and 78,168.75

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Solution

The fourth proportional to 110,376.51, 152,322.84 and 78,168.75 is: 107,875.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,376.51 : 152,322.84 = 78,168.75 : x
  2. Step 2: Convert to fraction form
    110,376.51/152,322.84 = 78,168.75/x
  3. Step 3: Cross multiply
    110,376.51x = 152,322.84 × 78,168.75
  4. Step 4: Simplify right side
    110,376.51x = 11,906,885,999.25
  5. Step 5: Solve for x
    x = 11,906,885,999.25/110,376.51
  6. Step 6: Final answer
    x = 107,875.18

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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.