Home / 115,305.36-159,136.80-67,577.64

Finding the Fourth Proportional to 115,305.36, 159,136.80 and 67,577.64

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Solution

The fourth proportional to 115,305.36, 159,136.80 and 67,577.64 is: 93,266.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,305.36 : 159,136.80 = 67,577.64 : x
  2. Step 2: Convert to fraction form
    115,305.36/159,136.80 = 67,577.64/x
  3. Step 3: Cross multiply
    115,305.36x = 159,136.80 × 67,577.64
  4. Step 4: Simplify right side
    115,305.36x = 10,754,089,381.15
  5. Step 5: Solve for x
    x = 10,754,089,381.15/115,305.36
  6. Step 6: Final answer
    x = 93,266.17

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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.