Home / 135,534.58-187,068.96-90,214.36

Finding the Fourth Proportional to 135,534.58, 187,068.96 and 90,214.36

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Solution

The fourth proportional to 135,534.58, 187,068.96 and 90,214.36 is: 124,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,534.58 : 187,068.96 = 90,214.36 : x
  2. Step 2: Convert to fraction form
    135,534.58/187,068.96 = 90,214.36/x
  3. Step 3: Cross multiply
    135,534.58x = 187,068.96 × 90,214.36
  4. Step 4: Simplify right side
    135,534.58x = 16,876,306,502.27
  5. Step 5: Solve for x
    x = 16,876,306,502.27/135,534.58
  6. Step 6: Final answer
    x = 124,516.61

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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.