Home / 135,708.48-187,284.96-79,116.48

Finding the Fourth Proportional to 135,708.48, 187,284.96 and 79,116.48

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Solution

The fourth proportional to 135,708.48, 187,284.96 and 79,116.48 is: 109,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,708.48 : 187,284.96 = 79,116.48 : x
  2. Step 2: Convert to fraction form
    135,708.48/187,284.96 = 79,116.48/x
  3. Step 3: Cross multiply
    135,708.48x = 187,284.96 × 79,116.48
  4. Step 4: Simplify right side
    135,708.48x = 14,817,326,792.14
  5. Step 5: Solve for x
    x = 14,817,326,792.14/135,708.48
  6. Step 6: Final answer
    x = 109,184.97

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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.