Home / 135,736.67-187,316.74-79,158.98

Finding the Fourth Proportional to 135,736.67, 187,316.74 and 79,158.98

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Solution

The fourth proportional to 135,736.67, 187,316.74 and 79,158.98 is: 109,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,736.67 : 187,316.74 = 79,158.98 : x
  2. Step 2: Convert to fraction form
    135,736.67/187,316.74 = 79,158.98/x
  3. Step 3: Cross multiply
    135,736.67x = 187,316.74 × 79,158.98
  4. Step 4: Simplify right side
    135,736.67x = 14,827,802,075.33
  5. Step 5: Solve for x
    x = 14,827,802,075.33/135,736.67
  6. Step 6: Final answer
    x = 109,239.47

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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.